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Find the Exact Value of the Composition $\cos \left( \arcsin \left( \frac { 1 } { 4 } \right) \right)$

Question 419

Multiple Choice

Find the exact value of the composition.
- $\cos \left( \arcsin \left( \frac { 1 } { 4 } \right) \right)$

A) $\frac { \sqrt { 15 } } { 4 }$
B) $\frac { \sqrt { 15 } } { 2 }$
C) $\frac { 2 \sqrt { 15 } } { 15 }$
D) $\frac { 4 \sqrt { 15 } } { 15 }$

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