Question

1/1-sinx + 1/1+sinx =2sec^2x

Answer 1

you want us to solve for x?

and do you mean

1/(1-sin(x)) + 1/(1+sin(x)) =2*(sec(x))^2

Answer 2

in that case x=x

Answer 3

Yes, that's what I mean. No just prove the identity.

Answer 4

Would I need to start with the LCD?