Find an Algebraic Expression That Is Equivalent to the Expression $$\cos ( \arcsin 2 x )$$

question 16

Multiple Choice

Find an algebraic expression that is equivalent to the expression.. $$\cos ( \arcsin 2 x )$$

• A) \(\sqrt { 4 x ^ { 2 } - 1 }\)
• B)\(\frac { 1 } { \sqrt { 1 + 4 x ^ { 2 } } }\)
• C) \(\sqrt { 1 + 4 x ^ { 2 } }\)
• D) \(\sqrt { 1 - 4 x ^ { 2 } }\)
• E) \(\frac { 1 } { \sqrt { 1 - 4 x ^ { 2 } } }\)

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