NCERT Solutions for Class 12 Maths Chapter 7 Integrals (Ex 7.7) Exercise 7.7
Home > NCERT Solutions > NCERT Solutions for Class 12 Maths Chapter 7 Integrals (Ex 7.7) Exercise 7.7

CBSE Important Questions›

CBSE Previous Year Question Papers›
 CBSE Previous Year Question Papers
 CBSE Previous Year Question Papers Class 12
 CBSE Previous Year Question Papers Class 10

CBSE Revision Notes›

CBSE Syllabus›

CBSE Extra Questions›

CBSE Sample Papers›
 CBSE Sample Papers
 CBSE Sample Question Papers For Class 5
 CBSE Sample Question Papers For Class 4
 CBSE Sample Question Papers For Class 3
 CBSE Sample Question Papers For Class 2
 CBSE Sample Question Papers For Class 1
 CBSE Sample Question Papers For Class 12
 CBSE Sample Question Papers For Class 11
 CBSE Sample Question Papers For Class 10
 CBSE Sample Question Papers For Class 9
 CBSE Sample Question Papers For Class 8
 CBSE Sample Question Papers For Class 7
 CBSE Sample Question Papers For Class 6

ISC & ICSE Syllabus›

ICSE Question Paper›
 ICSE Question Paper
 ISC Class 12 Question Paper
 ICSE Class 10 Question Paper

ICSE Sample Question Papers›
 ICSE Sample Question Papers
 ISC Sample Question Papers For Class 12
 ISC Sample Question Papers For Class 11
 ICSE Sample Question Papers For Class 10
 ICSE Sample Question Papers For Class 9
 ICSE Sample Question Papers For Class 8
 ICSE Sample Question Papers For Class 7
 ICSE Sample Question Papers For Class 6

ICSE Revision Notes›
 ICSE Revision Notes
 ICSE Class 9 Revision Notes
 ICSE Class 10 Revision Notes

ICSE Important Questions›

Maharashtra board›

RajasthanBoard›
 RajasthanBoard

Andhrapradesh Board›
 Andhrapradesh Board
 AP Board Sample Question Paper
 AP Board syllabus
 AP Board Previous Year Question Paper

Telangana Board›

Tamilnadu Board›

NCERT Solutions Class 12›
 NCERT Solutions Class 12
 NCERT Solutions Class 12 Economics
 NCERT Solutions Class 12 English
 NCERT Solutions Class 12 Hindi
 NCERT Solutions Class 12 Maths
 NCERT Solutions Class 12 Physics
 NCERT Solutions Class 12 Accountancy
 NCERT Solutions Class 12 Biology
 NCERT Solutions Class 12 Chemistry
 NCERT Solutions Class 12 Commerce

NCERT Solutions Class 10›

NCERT Solutions Class 11›
 NCERT Solutions Class 11
 NCERT Solutions Class 11 Statistics
 NCERT Solutions Class 11 Accountancy
 NCERT Solutions Class 11 Biology
 NCERT Solutions Class 11 Chemistry
 NCERT Solutions Class 11 Commerce
 NCERT Solutions Class 11 English
 NCERT Solutions Class 11 Hindi
 NCERT Solutions Class 11 Maths
 NCERT Solutions Class 11 Physics

NCERT Solutions Class 9›

NCERT Solutions Class 8›

NCERT Solutions Class 7›

NCERT Solutions Class 6›

NCERT Solutions Class 5›
 NCERT Solutions Class 5
 NCERT Solutions Class 5 EVS
 NCERT Solutions Class 5 English
 NCERT Solutions Class 5 Maths

NCERT Solutions Class 4›

NCERT Solutions Class 3›

NCERT Solutions Class 2›
 NCERT Solutions Class 2
 NCERT Solutions Class 2 Hindi
 NCERT Solutions Class 2 Maths
 NCERT Solutions Class 2 English

NCERT Solutions Class 1›
 NCERT Solutions Class 1
 NCERT Solutions Class 1 English
 NCERT Solutions Class 1 Hindi
 NCERT Solutions Class 1 Maths

JEE Main Question Papers›

JEE Main Syllabus›
 JEE Main Syllabus
 JEE Main Chemistry Syllabus
 JEE Main Maths Syllabus
 JEE Main Physics Syllabus

JEE Main Questions›
 JEE Main Questions
 JEE Main Maths Questions
 JEE Main Physics Questions
 JEE Main Chemistry Questions

JEE Main Mock Test›
 JEE Main Mock Test

JEE Main Revision Notes›
 JEE Main Revision Notes

JEE Main Sample Papers›
 JEE Main Sample Papers

JEE Advanced Question Papers›

JEE Advanced Syllabus›
 JEE Advanced Syllabus

JEE Advanced Mock Test›
 JEE Advanced Mock Test

JEE Advanced Questions›
 JEE Advanced Questions
 JEE Advanced Chemistry Questions
 JEE Advanced Maths Questions
 JEE Advanced Physics Questions

JEE Advanced Sample Papers›
 JEE Advanced Sample Papers

NEET Eligibility Criteria›
 NEET Eligibility Criteria

NEET Question Papers›

NEET Sample Papers›
 NEET Sample Papers

NEET Syllabus›

NEET Mock Test›
 NEET Mock Test

NCERT Books Class 9›
 NCERT Books Class 9

NCERT Books Class 8›
 NCERT Books Class 8

NCERT Books Class 7›
 NCERT Books Class 7

NCERT Books Class 6›
 NCERT Books Class 6

NCERT Books Class 5›
 NCERT Books Class 5

NCERT Books Class 4›
 NCERT Books Class 4

NCERT Books Class 3›
 NCERT Books Class 3

NCERT Books Class 2›
 NCERT Books Class 2

NCERT Books Class 1›
 NCERT Books Class 1

NCERT Books Class 12›
 NCERT Books Class 12

NCERT Books Class 11›
 NCERT Books Class 11

NCERT Books Class 10›
 NCERT Books Class 10

Chemistry Full Forms›
 Chemistry Full Forms

Biology Full Forms›
 Biology Full Forms

Physics Full Forms›
 Physics Full Forms

Educational Full Form›
 Educational Full Form

Examination Full Forms›
 Examination Full Forms

Algebra Formulas›
 Algebra Formulas

Chemistry Formulas›
 Chemistry Formulas

Geometry Formulas›
 Geometry Formulas

Math Formulas›
 Math Formulas

Physics Formulas›
 Physics Formulas

Trigonometry Formulas›
 Trigonometry Formulas

CUET Admit Card›
 CUET Admit Card

CUET Application Form›
 CUET Application Form

CUET Counselling›
 CUET Counselling

CUET Cutoff›
 CUET Cutoff

CUET Previous Year Question Papers›
 CUET Previous Year Question Papers

CUET Results›
 CUET Results

CUET Sample Papers›
 CUET Sample Papers

CUET Syllabus›
 CUET Syllabus

CUET Eligibility Criteria›
 CUET Eligibility Criteria

CUET Exam Centers›
 CUET Exam Centers

CUET Exam Dates›
 CUET Exam Dates

CUET Exam Pattern›
 CUET Exam Pattern
Mathematics has often been upheld as an imperative subject necessary for the smooth and unhindered functioning of human life. Additionally, mathematics and its subdisciplines possess a considerable scope for academic research, which also implies that it is a field with many profitable career choices and promising opportunities. Mathematics is an indispensable academic discipline that is taught to students from the earliest stages of their schooling. Accordingly, it plays a considerable role in the prescribed NCERT academic curriculum for Class 12. Consequently, this necessitates the availability of and convenient access to reliable NCERT Solutions to aid selflearning. The NCERT curriculum for Class 12 Mathematics comprises thirteen distinct chapters that have been carefully compiled into an ordered sequence. Chapter 7 is titled Integrals. Of the entire prescribed curriculum for Class 12 by NCERT, integrals is one of the most versatile and complex themes with many underlying subtopics. Exercise 7.7, within the numerous challenging assessments that make up Chapter 7, is an important element that cannot be overlooked to excel in examinations.
The Extramarks’ website, in collaboration with renowned subject experts, has prepared the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 to enhance the conceptual clarity of students.
Important formulae can be conveniently retained through regular practice. Therefore, students are greatly suggested to consistently practice NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7. These NCERT Solutions Class 12 Maths Chapter 7 Exercise 7.7 would also be useful in helping students familiarise themselves with the logically sequenced organization of a calculation. Thus, the practice of Class 12 Maths Chapter 7 Exercise 7.7 NCERT Solutions so that they can effectively monitor their time management during examinations. The NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7, have been designed in consideration of the latest updated CBSE syllabus by Extramarks. The content of the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7, has been structured while considering that there should be no gaps in the instruction students are receiving from their teachers and the learning resources available at the Extramarks’ learning platform.
NCERT Solutions for Class 12 Maths Chapter 7 Integrals (Ex 7.7) Exercise 7.7
Students and teachers both have their share of concerns concerning the theme of integrals and calculus. The majority of students dislike the theorem of calculus because they consider it to be a major hindrance to academic excellence. However, students must take note of the fact that these themes are prominent and very crucial portions of the mathematics syllabus prescribed for Class 12. These are also very fundamental disciplines that possess vast potential for academic and scientific research. Therefore, their importance cannot be overlooked. It could prove to be challenging for students to follow the instruction and guidance of their teachers during classroom teaching, or to maintain their pace of grasping teachings in accordance with that of their peers. In such a situation, the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 might play a crucial role in encouraging selflearning among students. Extramarks has gone the extra mile in its efforts at compiling the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7, through intensive research and careful analysis to ensure the quality of the content. In the academic field of mathematics, integrals are an important area of research. This is why it is vital to lay a strong and reliable foundation by developing an adequate amount of conceptual clarity to prepare students appropriately for their future studies. The NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7, are detailed, highquality, and easytounderstand solutions to the questions covered in Exercise 7.7. The NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 would also help students seek appropriate answers to their doubts and queries while practising.
Extramarks is committed to providing dependable, genuine, and selfexplanatory NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 to motivate students to engage with the themes of integrals and calculus by moving away from their prior apprehensions. The wellorganized and logicallystructured format of the calculations provided as a part of the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7, would help students adequately adhere to the ideal format for problemsolving and would clarify their doubts stepbystep.
Access NCERT Solutions for Class 12 Chapter 7 – Integrals
The academic curriculum for Class 12 prescribed by the NCERT consists of the theme of integrals, which is widely acknowledged as a complex and versatile topic. On the one hand, it is a conceptually dynamic theme, and on the other hand, it also acts as an opening into a wider expanse of research and academic study for those who are looking forward to pursuing mathematics in the future as a career choice. Remarkably, students must regularly indulge in practising comprehensive and detailed assessments through the aid of quality reference materials like the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 to attain perfection in Integrals and Calculus. Regular practice of the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 would undoubtedly also result in a considerable improvement in the students’ memory retention and problemsolving capabilities. Moreover, the problemsolving skills acquired by students would equip them with the necessary understanding required to adequately decode the problem at hand and develop an appropriate response to it. Students would be able to choose the right practical approach to solving a problem along with the appropriate formulae that which have to be applied to do the necessary calculations. The NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 have been planned to function efficiently as consumable learning resources during the examination period for students. Therefore, the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 have been compiled very selectively through the inclusion of the most efficient ways of solving longdrawn problems related to the Integrals and theorem of Calculus.
Extramarks provides highquality, authentic, and comprehensively explained NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7. The NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 available at the Extramarks’ learning platform, are curated by reputed subject experts and would act as a versatile learning resource for the students.
NCERT Solutions for Class 12 Maths Chapter 7 Integrals Exercise 7.7
The NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 have been compiled through tireless efforts by Extramarks to cater to the nuances of the updated NCERT academic curriculum. The NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 have been organised cautiously to aid the selflearning of students in a way that they can appropriately follow the logical sequence of calculations. It is fundamental for students to acquire and retain crucial formulas and their derivatives. It is also equally important for them to be able to practically apply these formulae for solving problems. This is a skill that can be attained through constant practice and revision. Therefore, Extramarks provides the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 as comprehensive and curated reference material with quality content for the convenience of reference whenever required.
The Extramarks’ website is a reliable, reputed, and efficient learning platform. It provides comprehensive, highquality, and easily understandable academic content like the NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 to complement the efforts of students. Additionally, Extramarks has other wellstructured and dependable content like the NCERT Solutions Class 1, NCERT Solutions Class 2, NCERT Solutions Class 3, NCERT Solutions Class 4, NCERT Solutions Class 5, NCERT Solutions Class 6, NCERT Solutions Class 7, NCERT Solutions Class 8, NCERT Solutions Class 9, NCERT Solutions Class 10, NCERT Solutions Class 11 and NCERT Solutions Class 12.
Q.1
$\begin{array}{l}\begin{array}{l}\mathrm{Choose}\text{}\mathrm{the}\text{}\mathrm{correct}\text{}\mathrm{answer}\\ \int \sqrt{1+{\text{x}}^{2}}\text{}\mathrm{dx}\mathrm{is}\mathrm{equal}\mathrm{to}\end{array}\\ \left(\text{A}\right)\text{}\frac{\text{x}}{2}\sqrt{1+{\text{x}}^{2}}+\frac{1}{2}\mathrm{log}\left\left(\text{x}+\sqrt{1+{\text{x}}^{2}}\right)\right+\text{C}\\ \left(\text{B}\right)\text{}\frac{2}{3}{\left(1+{\text{x}}^{2}\right)}^{\frac{3}{2}}+\text{C}\\ \left(\text{C}\right)\text{}\frac{2}{3}\text{x}{\left(1+{\text{x}}^{2}\right)}^{\frac{3}{2}}+\text{C}\\ \left(\text{D}\right)\text{}\frac{{\text{x}}^{2}}{2}\sqrt{1+{\text{x}}^{2}}\text{}+\frac{1}{2}{\text{x}}^{2}\text{}\mathrm{log}\left\left(\text{x}+\sqrt{1+{\text{x}}^{2}}\right)\right+\text{C}\end{array}$
Ans
$\begin{array}{l}\mathrm{Let}\text{\hspace{0.17em}\hspace{0.17em}}\mathrm{I}=\int \sqrt{1+{\mathrm{x}}^{2}}\text{\hspace{0.17em}}\mathrm{dx}\\ \text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em} \hspace{0.17em}\hspace{0.17em}}=\int \sqrt{{\mathrm{x}}^{2}+{1}^{2}}\text{\hspace{0.17em}}\mathrm{dx}\\ \text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em} \hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}[\mu \int \sqrt{{\mathrm{x}}^{2}+{\mathrm{a}}^{2}}\text{\hspace{0.17em}}\mathrm{dx}=\frac{\mathrm{x}}{2}\sqrt{{\mathrm{x}}^{2}+{\mathrm{a}}^{2}}+\frac{{\mathrm{a}}^{2}}{2}\mathrm{log}\mathrm{x}+\sqrt{{\mathrm{x}}^{2}+{\mathrm{a}}^{2}}]\\ \text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em} \hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}=(\frac{\mathrm{x}}{2}\sqrt{{\mathrm{x}}^{2}+{1}^{2}}+\frac{{1}^{2}}{2}\mathrm{log}\mathrm{x}+\sqrt{{\mathrm{x}}^{2}+{1}^{2}})+\mathrm{C}\\ \text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em} \hspace{0.17em}\hspace{0.17em}}=\frac{\mathrm{x}}{2}\sqrt{{\mathrm{x}}^{2}+1}+\frac{1}{2}\mathrm{log}\mathrm{x}+\sqrt{{\mathrm{x}}^{2}+1}+\mathrm{C}\\ \text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em} \hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}=\frac{\mathrm{x}}{2}\sqrt{1+{\mathrm{x}}^{2}}+\frac{1}{2}\mathrm{log}\mathrm{x}+\sqrt{1+{\mathrm{x}}^{2}}+\mathrm{C}\\ \mathrm{Hence},\text{\xe2\u20ac\u2039\hspace{0.17em}\hspace{0.17em}}\mathrm{the}\text{correct option is A.}\end{array}$
Q.2
$\begin{array}{l}\begin{array}{l}\mathrm{Choose}\text{}\mathrm{the}\text{}\mathrm{correct}\text{}\mathrm{answer}\\ \int \sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}\text{}\mathrm{dx}\mathrm{is}\mathrm{equal}\mathrm{to}\end{array}\\ \left(\mathrm{A}\right)\text{}\frac{1}{2}\left(\mathrm{x}4\right)\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}+9\text{}\mathrm{log}\left\mathrm{x}4+\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}\right+\mathrm{C}\\ \left(\mathrm{B}\right)\text{}\frac{1}{4}\left(\mathrm{x}+4\right)\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}+9\mathrm{log}\left\mathrm{x}+4+\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}\right+\mathrm{C}\\ \left(\mathrm{C}\right)\text{}\frac{1}{2}\left(\mathrm{x}4\right)\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}3\sqrt{2}\text{}\mathrm{log}\left\mathrm{x}4+\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}\right+\mathrm{C}\\ \left(\mathrm{D}\right)\text{}\frac{1}{2}\left(\mathrm{x}4\right)\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}\frac{9}{2}\mathrm{log}\left\mathrm{x}4+\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}\right+\mathrm{C}\end{array}$
Ans
$\begin{array}{l}\mathrm{We}\text{have,}\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}=\sqrt{{(\mathrm{x}4)}^{2}9}\\ \mathrm{Let}\text{I}=\int \sqrt{{(\mathrm{x}4)}^{2}{\left(3\right)}^{2}}\text{\hspace{0.17em}}\mathrm{dx}\\ \text{\hspace{0.17em} \hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}=\int \sqrt{{\mathrm{t}}^{2}{\left(3\right)}^{2}}\text{\hspace{0.17em}}\mathrm{dt}\text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}\left[\mathrm{Let}\text{\hspace{0.17em}t}=\mathrm{x}4\Rightarrow \frac{\mathrm{dt}}{\mathrm{dx}}=1\right]\\ \text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em} \hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}[\mu \int \sqrt{{\mathrm{x}}^{2}{\mathrm{a}}^{2}}\text{\hspace{0.17em}}\mathrm{dx}=\frac{\mathrm{x}}{2}\sqrt{{\mathrm{x}}^{2}{\mathrm{a}}^{2}}\frac{{\mathrm{a}}^{2}}{2}\mathrm{log}\mathrm{x}+\sqrt{{\mathrm{x}}^{2}{\mathrm{a}}^{2}}]\\ \text{\hspace{0.17em}\hspace{0.17em} \hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}=\frac{\mathrm{t}}{2}\sqrt{{\mathrm{t}}^{2}{\left(3\right)}^{2}}\frac{{\left(3\right)}^{2}}{2}\mathrm{log}\mathrm{t}+\sqrt{{\mathrm{t}}^{2}{\left(3\right)}^{2}}+\mathrm{C}\\ \mathrm{Putting}\text{t}=\mathrm{x}4,\text{\hspace{0.17em}}\mathrm{we}\text{\hspace{0.17em}}\mathrm{get}\\ \text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}=\frac{(\mathrm{x}4)}{2}\sqrt{{(\mathrm{x}4)}^{2}{\left(3\right)}^{2}}\frac{9}{2}\mathrm{log}(\mathrm{x}4)+\sqrt{{(\mathrm{x}4)}^{2}{\left(3\right)}^{2}}+\mathrm{C}\\ \text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}}=\frac{(\mathrm{x}4)}{2}\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}\frac{9}{2}\mathrm{log}(\mathrm{x}4)+\sqrt{{\mathrm{x}}^{2}8\mathrm{x}+7}+\mathrm{C}\\ \mathrm{Hence},\text{the correct option is D.}\end{array}$
For viewing question paper please click here
FAQs (Frequently Asked Questions)
1. What are the most reliable NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7?
Extramarks offers genuine and highquality online versions of the NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.7. The content available on Extramarks is curated by top subject matter experts and is reliable, uptodate, and accurate. The solutions provided have been devised to ensure efficiency, simplicity, and effectiveness.
2. What are the advantages of NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7?
In addition to being comprehensive and easy to understand, the Extramarks website’s NCERT Solutions For Class 12 Maths Chapter 7 Exercise 7.7 are organized and wellwritten. Students’ efforts will be complemented by these solutions, which will aid and encourage their selflearning. Students who are looking for answers to unresolved questions and doubts will find these solutions organized according to the latest NCERT syllabus.