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Question

If 2a3a=1, then, find the value of 8a327a3


A

19

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B

20

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C

21

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D

22

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Solution

The correct option is A

19


Given: 2a3a=1

(2a3a)3=1

(2a)333a33×2a×3a×(2a3a)=1

8a327a318×1=1

8a327a3=1+18=19


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