Question

Find all the solutions
Csc^2 x- csc x-2=0

Answer 1

Solve y^2 - y -2 = 0

y = [1+- sqrt(1+8)]/2 = [1+-3]/2 = -1, 2

csc x = -1, 2

1/sin x = -1, 2

sin x = -1, 1/2

x = etc.

Answer 2

Thanks. Glad to have helped.

Answer 3

:)