Trig Trick
Geometry
Level
2
Multiple Choice Question
Simplify:
\[ \frac { \sin 7x - \sin 5x} { \cos 7x + \cos 5x}. \]
1) \( \tan x\)
2) \( \tan 2x \)
3) \( \tan 6x \)
4) \( \tan 12x \)
[Sorry, they want the multiple choice options to be a whole number, so pick from the above choices.]
by
Chung Kevin