Inverse Trigonometric Formulas

Inverse Trigonometric Formulas

The study of the relationships between the angles and sides of a right-angled triangle is covered in the discipline of Trigonometry, which is an important branch of Mathematics. One can find a list of trigonometry formulas based on functions and ratios like sin, cos, and tan in the Mathematics curriculum for high school students. Similarly, students are also taught about the fundamentals of inverse trigonometric functions. The Inverse Trigonometric Formulas for these functions are very crucial to understand the concepts of Trigonometry and other related disciplines. One of the most essential concepts in Mathematics are the Inverse Trigonometric Formulas. The Inverse Trigonometric Formulas are among those ideas that establish the fundamental framework for a student’s comprehension of angles and triangles. Basic trigonometric functions and inverse trigonometric functions are closely connected. The inverse trigonometric functions’ domain and range are converted from the trigonometric functions’ domain and range. Trigonometry teaches students about the connections between the angles and sides in a right-angled triangle. Functions in inverse trigonometry are comparable. The core trigonometric functions are sin, cos, tan, cosec, sec, and cot. The inverse trigonometric functions, on the other hand, are abbreviated as sin–1x, cos–1x, cot–1x, tan–1x, cosec–1x, and sec–1x. The list of Inverse Trigonometric Formulas are divided into the multiple groups. The Inverse Trigonometric Formulas are useful for converting one function to another, finding the functions’ principal angle values, and executing a variety of arithmetic operations over these inverse trigonometric functions. Additionally, each and every one of the fundamental trigonometric function formulas are converted into an Inverse Trigonometric Formula, which is grouped into the four sets of formulas. These are arbitrary values, reciprocal and complementary roles, function sums and differences, triple and double of the function.

What is Inverse Trigonometric Function?

In Mathematics, the inverse trigonometric functions are the reverse of the trigonometric functions. They are also referred to as arcus functions, antitrigonometric functions, or cyclometric functions (with suitably restricted domains). They can be used to find an angle from any of the angle’s trigonometric ratios because they are specifically the inverses of the sine, cosine, tangent, cotangent, secant, and cosecant functions. Inverse trigonometric functions are broadly applied in Engineering, Navigation, Physics, And Geometry. Trigonometry is the branch of geometry that explains the relationships between a right-angled triangle’s angles and sides. It contains identities and Inverse Trigonometric Formulas that are very useful for calculations in Science and Mathematics. As was already mentioned, Trigonometry also includes ratios and functions like sin, cos, and tan. The question of what an inverse trigonometric function is can also be answered in the same way. Interestingly, the fundamental trigonometric functions sine, cosine, tangent, cotangent, secant, and cosecant have their opposites. These are known as inverse trigonometric functions. However, most of the time, the inverse trigonometric function is denoted by a symbol with an arc-prefix, such as arcsin(x), arccos(x), arctan(x), arccsc(x), arcsec(x), or arccot (x), when the remaining side lengths are known, to get the triangle’s sides. To find the angle for any trigonometric ratio, students need to apply these inverse trigonometric functions.

Inverse Trigonometric Formulas List

The Inverse Trigonometric Formulas are constructed from some fundamental trigonometric properties in order to solve the many types of inverse trigonometric functions. The list of Inverse Trigonometric Formulas is provided by the Extramarks platform for use in resolving the trigonometric problems. By using these properties to determine the solutions, the Inverse Trigonometric Formulas list aids students in quickly solving problems. Students should refer to the Extramarks website and mobile application to comprehend the fundamentals of Trigonometry in an effective manner.

Inverse Trigonometric Formulas

The Inverse Trigonometric Formulas assist students in solving even the most difficult problems. The Inverse Trigonometric Formulas for inverse trigonometric functions can be applied when tackling trigonometric problems. Inverse trigonometric functions are sometimes known as arc functions. There is a specific range in which inverse trigonometric functions are defined (under restricted domains). Since they create the length of arc required to arrive at a given value of trigonometric functions, inverse trigonometric functions are also known as “Arc Functions”. Trigonometric operations like sine, cosine, tangent, cosecant, secant, and cotangent are performed in the reverse manner using inverse trigonometric functions. The right angle triangle is a common application for trigonometric functions. When the measures of two of the triangle’s sides are known, these six significant functions are used to determine the angle measure in the right triangle.

Inverse Trigonometric Ratios

Inverse trigonometric ratios are trigonometric ratios that are used to calculate the value of an unknown angle using the side ratio of a right-angled triangle. Similar to using angles to determine the trigonometric ratios of the triangle’s sides, we can use trigonometric ratios to compute the angle.

Fun Facts

The first trigonometry table was created by Hipparchus, who is regarded as the father of trigonometry. Daniel Bernoulli actually introduced inverse trigonometric functions in the early 1700s. Inverse trigonometric functions are used to determine an angle given a ratio, and are particularly helpful in practical applications. A scientist might, for instance, attempt to determine a ramp’s angle of inclination. One can apply arcsine or arccosecant to determine the unknown angle, as long as they know the length and height of the ramp. The angle will be in the first quadrant, since the triangle in this scenario is a typical right triangle.

Solved Examples

It is important to practice solving different types of questions in order to completely understand the Inverse Trigonometric Formulas. Extramarks provides a variety of solved examples on the Inverse Trigonometric Formulas for students to advance their learning.


Inverse trigonometry functions are functions that help to find an angle by using trigonometric ratios. The inverse of the sine, cosine, tangent, cosecant, secant, and cotangent are all included in inverse trigonometry. Inverse trigonometric functions are crucial in geometry and the majority of scientific and engineering fields, just like conventional trigonometric functions.

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FAQs (Frequently Asked Questions)

1. Where can students find solved examples on the Inverse Trigonometric Formulas?

Students can find solved examples on the Inverse Trigonometric Formulas on the Extramarks website and mobile application.

2. Where are the Inverse Trigonometric Formulas used?

The Inverse Trigonometric Formulas are used in various fields such as engineering, science,  navigation, physics, and geometry.