`sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+ . . . .+sin^(2)85^(@)+sin^(2)90^(@)` is equal to
Channel: Doubtnut
Date: 2021-11-08

`sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+ . . . .+sin^(2)85^(@)+sin^(2)90^(@)` is equal to