Question

If cosec a+sin a =5 1by5(mixed fraction) find the value of cosec square a+sin square a

Answer 1

Cosec a + sin a = 26/5

Squaring on both sides

Cosec sq a +sin sq a + 2 cosec a sin a = 676/25

Cosec sq a + sin sq a = 676/25 - 2

= 626/25