If `y=5 (sin 100^(@)cos 27^(@) +cos 100^(@)sin 27^(@))` the value of y is :-

cos57^(@)+sin27^(@)=

Evaluate sin63^(@)cos27^(@)+cos63^(@)sin27^(@)=

Simplify cos 100^(@) cos 40^(@) +sin 100^(@) sin 40^(@)

Simplify cos 100^(@) cos 40^(@) + sin 100^(@) sin 40^(@) .

tan 7^@ cos 11^@ sin 27^@ is

Simplify : sin 100^(@) + cos 100^(@) .

If cos 18^(@) - sin 18^(@) = k sin 27^(@) , then k =

Evaluate sin 27 ^(@) sin 63 ^(@) - cos 63^(@) cos 27 ^(@)

If tan(7x^(@))=(sin x^(@)cos y^(@)+cos x^(@)sin y^(@))/(cos x^(@)cos y^(@)-sin x^(@)sin^(@)) where x+y=134^(@) ,then the least positive integral value of x, is-

If cos18^(@)-sin18^(@)=sqrt(x)sin27^(@) , then x=