Evaluate:
(i) `(sin^2 63^@+sin^2 27^@)/(cos^2 17^@+cos^2 73^@)`
(ii) `sin 25^@ cos 65^@+cos 25^@sin 65^@`

Evaluate :- (sin^2 63^@+sin^2 27^@)/(cos^2 17^@+cos^2 73^@) .

Evaluate : (2sin^2 63^@+1+2sin^2 27^@)/(3 cos ^2 17^@-2+3cos^2 73^@)

sin25^(@)cos65^(@)+cos25^(@)sin65^(@)

sin25^(@)cos65^(@)+cos25^(@)sin65^(@)

2sin65^@cos25^@=

Evaluate: sin 25^@ cos 65^@ + cos 25^@ sin 65^@

Evaluate : (sin^(2)63^(@)+sin^(2)27^(@))/(cos^(2)17^(@)+cos^(2)73^(@))

Find the value of (2 sin^2 63^@+1+2sin^2 27^@)/(3cos^2 17^@-2+3cos^2 73^@)

Evaluate: ( i ) (sin^(2)63+sin^(2)27)/(cos^(2)17+cos^(2)73)( ii) sin25^(@)backslash cos65^(@)+cos backslash25sin backslash65