Find the Derivative of the Function $y = \ln \left( \cos ^ { 2 } x \right)$

question 4

Multiple Choice

Find the derivative of the function $y = \ln \left( \cos ^ { 2 } x \right)$ and simplify your answer by using the trigonometric identities.

• A) \(y = 2 \tan x\)
• B) \(y = \frac { 2 } { \cos x \sin x }\)
• C) \(y = - 2 \tan x\)
• D) \(y = 2 \cot x\)
• E) \(y = - 2 \cot x\)

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