माना x=4^(log(2)sqrt(9^(k-1)+7)) एवं y =...

माना `x=4^(log_(2)sqrt(9^(k-1)+7))` एवं `y = 1/(32^(log_(2)root5(3^(k-1)+1)))` तथा `xy =4` है , तो `k` के वास्तविक मानों के वर्गों का योगफल है:

A

1

B

5

C

8

D

9

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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