Powers and Roots

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  • Q1

    The simplified form of is

    Marks:1
    Answer:

    9m2n.

    Explanation:
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  • Q2

    1 raised to the power any whole number is

    Marks:1
    Answer:

    1.

    Explanation:
    Let ‘a’ be any whole number, then
                       1a = 1, for example, if ‘a’ = 4, then 14 = 1
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  • Q3

    The value of (-6)4 x 3 – 8 - 4 is

    Marks:1
    Answer:

    1.

    Explanation:
    (-6)4 x 3 – 8 - 4 = (-6)12 - 12
                        = (-6)0
                        = 1
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  • Q4

    a2b3 is same as

    Marks:1
    Answer:

    b3a2.

    Explanation:
    The terms a2b3 and b3a2 are same, since the powers of a and b in these two terms are same.
    i.e., a2b3 = a X a X b X b X b and b3a=  b X b X b X a X a are same.
    (The order of factors does not matter.)
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  • Q5

    Power notation of is

    Marks:1
    Answer:

    Explanation:
     
    View Answer