Fundamental Concepts

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  • Q1

    The coefficient of xy2z in -4xy2z is

    Marks:1
    Answer:

    -4.

    Explanation:
    In a product of numbers and literals, any of the factors is called the coefficient of the product of other factors.
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  • Q2

    State in words the meaning of the following algebraic expression: (2a – b)

    Marks:1
    Answer:

    b subtracted from twice of a.

    Explanation:
    'b' subtracted from twice of 'a'  is represented as-
    (2a – b)
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  • Q3

    Give expression for the following case: Eleven added to twice of z.

    Marks:1
    Answer:

    11 + 2z

    Explanation:
    Twice of z = 2z
    11 + 2z
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  • Q4

    The given algebraic expression 7ab2 is a

    Marks:1
    Answer:

    monomial

    Explanation:

    Since the given algebraic expression contains only one term. Thus, the given expression is a monomial.

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  • Q5

    –3xy, 7xy and –yx are

    Marks:1
    Answer:

    like terms.

    Explanation:

    As the terms have the same literal factors x & y, they are all like terms.

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