" 1.If `x=(sin130^(@)+cos130^(@))` then

If x=sin130^(@)+cos130^(@) then 1.)x 0 4.) x>=0

Q.if x=sin130^(@)cos80^(@),y=sin80^(@)cos130^(@)=1+xy, which one of the following is true

If x = sin 130^(@) cos 80^(@), y = sin 80^(@) cos 130^(@), z = 1+xy , which one of the following is true ?

The value of (sin50^(@))/(sin130^(@)) is ….. .

If A=130^(@) and x=sinA+cosA , then

Prove the following Identities cos 10^(@) + cos 110^(@) + cos 130^(@) = 0

cos 20^(@) + cos 100^(@) + cos 140^(@)= A) cos 130^(@) B) cos 45 ^(@) C)0D)none of these

If A=130^(@) and x=sin A+cos A, then

What is the value of cos10^(@)+cos110^(@)+cos130^(@) ?