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.]