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If alpha, beta , gamma do not differ by ...

If `alpha, beta , gamma` do not differ by a multiple of a `pi and if ( cos (alpha + theta))/( sin (beta + gamma)) = (cos (bega + theta))/( sin (gamma + alpha )) = (cos (gamma + theta))/( sin (alpha + beta)) = k.` Then k equals

A

`pm2`

B

`pm 1/2`

C

`0`

D

`pm1`

Text Solution

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The correct Answer is:
A
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