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Question

Evaluate (3x4)2 × (x12)23


A

19

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B

127

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C

19

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D

127

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Solution

The correct option is C

19


Given

(3x4)2 × (x12)23

(ab)m = am×bm

32× (x4)2 × (x12)23

(an)m = (a)m×n

32× x4×2 × (x)12×23

32× x8 × (x)8

am = 1am

32× 1x8 × (x)8

32=19


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