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If sinalpha=15//17, (pi//2) ltalpha ltp...

If `sinalpha=15//17, (pi//2) ltalpha ltpi and secbeta=13//12, (3pi//2) lt beta lt 2pi.` then `sin(alpha-beta)=`

A

`220//221`

B

`-171//221`

C

`-140//171`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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