I'm having problems with it at school lately, im not gonna layout every single problem and ask for help. Im just wondering if there is a better approach to it rather than trying to solve one side in order to get it to equal the other side. For example, sin^2 x + cos^2 x = -cos^2 x - sin^2 x. Something like that. It bothers me how i just can't seem to be able to solve them. It's just like proves, where you either know it or you dont. Are there any easier way to solve them other than memorizing the trig identities? here's 1 that i jsut cant seem to solve for: sin^2 x / 1 - cos^2 x = 1 + cos^2 x / sin^2 x we are trying to show that they are equal.