Question

if sin A + cosec A = 2 find the value of sin^2 A + cosec^2 A​

Answer 1

sin A + cosecA = 2

(sin + cosec)² = (2)²

= 4

if sin A + cosec A makes 2

so there square must make 4

because their sum is 2

and square of 2 is 4

hope it helps