Solve the Problem $\tan \theta = \frac { 7 } { 24 }$

Multiple Choice

Solve the problem.
-If $\tan \theta = \frac { 7 } { 24 }$ , and $\theta$ terminates in quadrant III, then find $\cos 2 \theta$ .

A) $\frac { 527 } { 625 }$
B) $- \frac { 527 } { 625 }$
C) $\frac { 336 } { 625 }$
D) $- \frac { 336 } { 625 }$