Find Value of sin `27^@` or cos `63^@`

The value of 4sin27^(@)=

find the value of sin 27^(@)-cos27^(@) ?

Find the value of (sin 135^(@) - cos 120^(@))/(sin 135^(@) + cos 120^(@))

Find the value of (sin45^(@) + cos 45^(@))

The value of (tan 27^@ + cot 63^@)/(tan 27^@ (sin25^@ + cos65^@))

Find the value of (sin30^@+cos30^@)(sin60^@+cos60^@)

Find the value of (sin25^(@))/(cos35^(@))-(cos25^(@))/(sin35^(@))

Find the value of sin60^(@)cos30^(@)+cos60^(@)sin30^(@) .

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^@.