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Question

If x=(32)2(23)−4, the value of x−2 is?

A
(23)12
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B
(32)12
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C
(63)12
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D
(36)12
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Solution

The correct option is A (23)12

we know,

ambm=(ab)m=(ba)m
so,

If x=(32)2(23)4
=(32)2 (32)4

=(32)6

we know,
(am)n=amn

so,
x2

=(32)12

=(23)12


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