SOLUTION: simplify the trigonometric equation. sec^2 - tan^2 (-x) these are my possible answers: a. 1 b. 2sec^2x + 1 c. -1 d. tan x e. 2 tan^2 + 1 HELP! thank you!

Algebra ->  Trigonometry-basics -> SOLUTION: simplify the trigonometric equation. sec^2 - tan^2 (-x) these are my possible answers: a. 1 b. 2sec^2x + 1 c. -1 d. tan x e. 2 tan^2 + 1 HELP! thank you!      Log On