Calculate `sin 15^@` and `cos15^@`

(a)Calculate sin 105^@ and cos 15^@ .

If sin (A-B)=sin A cos B-cos A sin B and cos (A - B) = cos A cos B + sin A sin B . find the values of sin 15^@ and cos 15^@.

Ifsin(A-B)= sin A cosB-cos A sin B and cos(A-B) = cosA cosB + sin A sin B. Find the values of sin 15^@ and cos 15^@ .

Find the values of sin 15^@ , cos 15^@ and hence deduce the values of sin 75^@ and cos 75^@

Evaluate : sin 15^@, cos 15^@, tan 15^@ .

Evaluate : 2 sin 15 ^(@) cos 15 ^(@)

Find the value of sin 15^@+ cos 15^@

sin 15^(@) + cos 105 ^(@) =

sin15^(@)+cos105^(@)=?