If $f ( x ) = \sin ^ { 2 } x , \text { find } f ^ { \prime } \left( \frac { \pi } { 4 } \right)$

question 170

Multiple Choice

If $f ( x ) = \sin ^ { 2 } x , \text { find } f ^ { \prime } \left( \frac { \pi } { 4 } \right)$

• A) \(\sqrt { 2 }\)
• B) \(\frac { \sqrt { 2 } } { 3 }\)
• C)2
• D)1
• E) \(\frac { 1 } { 2 }\)
• F)0
• G) \(\frac { \sqrt { 3 } } { 4 }\)
• H) \(\frac { \sqrt { 2 } } { 2 }\)

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