Evaluate:(i) `(sin^2 63+sin^2 27)/(cos^2 17+cos^2 73)`(ii) `sin 25^@\ cos 65^@+cos\ 25sin\ 65`
Channel: Doubtnut
Date: 2020-07-05

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