If xsina+ysin2a+zsin3a=sin4a xsinb+ysin...

If `xsina+ysin2a+zsin3a=sin4a` `xsinb+ysin2b+zsin3b=sin4b`, `xsinc+ysin2c+zsin3c=sin4c`, then the roots of the equation `t^3-(z/2)t^2-((y+2)/4)t+((z-x)/8)=0,a , b , c ,!=npi,` are (a)`sina ,sinb ,sinc` (b) `cosa ,cosb ,cosc` (c)`sin2a ,sin2b ,sin2c` (d) `cos2a ,cos2bcos2c`

A

`sin a, sin b, sin c`

B

`cos a, cos b, cos c`

C

`sin 2a, sin 2b, sin 2c`

D

`cos 2a, cos 2b, cos 2c`

Text Solution

Verified by Experts

The correct Answer is:

B

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