The value of `sin^(2)1+sin^(2)5^(@)+sin^(2)9^(@)+ . . . .+sin^(2)89^(@)` is
Channel: Doubtnut
Date: 2021-11-08

The value of `sin^(2)1+sin^(2)5^(@)+sin^(2)9^(@)+ . . . .+sin^(2)89^(@)` is