Recent content by NotAMathWhiz

okay, so is this correct? 1/cos^4 x + 1/cos^2 x * sin^2 x/cos^2 x - 2(sin^4 x/cos^4 x)

1. sec^4 x + sec^2 x tan^2 x - 2 tan^4 x = ? The possible answers are: a. 4 sec^2 x b. 3 sec^2 x - 2 c. sec^2 x + 2 d. tan^2 x - 1 Homework Equations No idea. The Attempt at a Solution I'm not sure where to begin here. My book first doesn't cover anything above...