Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
-Find $\cos \theta$, given that $\cos 2 \theta = \frac { 1 } { 4 }$ and $\theta$ terminates in quadrant I.
A) $\frac { \sqrt { 8 - 2 \sqrt { 10 } } } { 4 }$
B) $\frac { \sqrt { 6 } } { 4 }$
C) $\frac { \sqrt { 10 } } { 4 }$
D) $\frac { \sqrt { 8 - 2 \sqrt { 5 } } } { 2 }$

Question

Quizplus · Accepted Answer

The Answer of Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
-Find $\cos \theta$, given that $\cos 2 \theta = \frac { 1 } { 4 }$ and $\theta$ terminates in quadrant I.
A) $\frac { \sqrt { 8 - 2 \sqrt { 10 } } } { 4 }$
B) $\frac { \sqrt { 6 } } { 4 }$
C) $\frac { \sqrt { 10 } } { 4 }$
D) $\frac { \sqrt { 8 - 2 \sqrt { 5 } } } { 2 }$

Choose the One Alternative That Best Completes the Statement or Answers