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If sin((23pi)/(24))=sqrt((2sqrtp-sqrtq-1...

If `sin((23pi)/(24))=sqrt((2sqrtp-sqrtq-1)/(4sqrtr))`, then the value of `(p^(2)+q^(2)-r^(2))` is equal to

A

6

B

12

C

`-1`

D

9

Text Solution

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The correct Answer is:
D
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