cos255^(@)+sin165^(@)=

The value of cos 255^(@)+sin165^(@) is

Cos255^(0)+sin165^(0) =

cos 225^(@)+ sin 165^(@)=

What is the value of cos15^(@)-cos165^(@) ?

Prove that 1 + (cos105^(@) + cos 165^(@))/(sin 105^(@) + sin 375^(@))= 0

sec 255^(@)=

( cos^(3) A + sin^(3) A )/( cos A + sin A ) + (cos^(3) A - sin^(3)A)/( cos A- sin A) =

Prove that : (cos^(3) A + sin^(3) A)/ (cos A + sin A) + (cos^(3) A - sin^(3) A)/(cos A - sin A) = 2

What is the value of cos 15^@-cos 165^@ ? cos 15^@-cos 165^@ का मान क्या है?

Find the values of (i) cos 15^(@) and (ii) tan 165^(@)