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If theta+phi=alpha,tantheta=K.tanphi and...

If `theta+phi=alpha,tantheta=K.tanphi andsin(theta-phi)=m.sinalpha,` then : `m=…..`

A

`K-(1)/(K+1)`

B

`(K-1)/(K+1)`

C

`K+(1)/(K-1)`

D

`(K+1)/(K-1)`

Text Solution

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The correct Answer is:
B
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