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If y=(1+t a n A)(1-t a n B), where A-B=p...

If `y=(1+t a n A)(1-t a n B),` where `A-B=pi/4,` then `(y+1)^(y-1)` is equal to 9 (b) 4 (c) 27 (d) 81

A

9

B

4

C

27

D

81

Text Solution

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The correct Answer is:
C
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