Question

If sin x + cosec x = 2 then what is the value of sin³x + cosec³x ????? ​

Answer 1

Step-by-step explanation:

sin x + 1/sin x = 2

sin^2 x +1= 2 sin x

sin^2 x - 2 sin x +1= 0

(sin x - 1)^2=0

sin x = 1

now

=sin^3 x + cosec^3x

= (1)^3+ (1)^3

=2