Home
Class 11
MATHS
" i) "sin21^(@)cos9^(@)-cos84^(@)cos6^(@...

" i) "sin21^(@)cos9^(@)-cos84^(@)cos6^(@)=(1)/(1)

Promotional Banner

Similar Questions

Explore conceptually related problems

Prove that sin21^(@)cos9^(@)-cos84^(@)cos6^(@)=1/4 .

sin 21^(@) cos 9^(@) - cos 84^(@) cos 6^(@)=

(The24^(@)cos6^(@)-sin6^(@)sin66^(@))/(sin21^(@)cos39^(@)-cos51^(@)sin69^(@)) is

cos66^(@)+sin84^(@)=

cos66^(@)+sin84^(@)=

3sin6^(@)-4cos^(3)84^(@)=

The value of (sin24^(@)cos6^(@)-sin6^(@)sin66^(@))/(sin21^(@)cos39^(@)-cos51^(@)sin69^(@)) is

Prove that cos12^(@)+cos84^(@)+cos132^(@)+cos156^(@)=-1/2

cos 12 ^(@) cos 24 ^(@) cos 36 ^(@) cos 48^(@) cos 72^(@) cos 84^(@) = (1)/(2 ^(6))