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Question

If a = 2 and b = 3, find the value of (ab)a.


A

16

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B

32

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C

64

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D

128

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Solution

The correct option is C

64


On substituting a = 2 and b = 3, we get

(23)2=23×2 [(xm)n=x(m×n)]

=26

=64


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