Find $\frac { d } { d \theta } \left( \frac { \cos \theta } { \sin \theta } \right)$

question 70

Multiple Choice

Find $\frac { d } { d \theta } \left( \frac { \cos \theta } { \sin \theta } \right)$ .

• A) \(\frac { 1 } { \sin ^ { 2 } \theta }\)
• B) \(- \frac { 1 } { \sin ^ { 2 } \theta }\)
• C) \(- \frac { \sin \theta } { \cos \theta }\)
• D) \(1 - \frac { \cos ^ { 2 } \theta } { \sin ^ { 2 } \theta }\)

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