A) $- \frac { \tan ^ { 3 } \theta } { 4 }$

question 70

Multiple Choice

$\text { Find the second derivative } \frac { d ^ { 2 } y } { d x ^ { 2 } } \text { of the parametric equations } x = 4 \cos \theta , y = 4 \sin \theta \text {. }$

• A) \(- \frac { \tan ^ { 3 } \theta } { 4 }\)
• B) \(- \frac { \csc ^ { 3 } \theta } { 4 }\)
• C) \(\frac { \csc ^ { 3 } \theta } { 4 }\)
• D) \(- \frac { \sec ^ { 3 } \theta } { 4 }\)
• E) \(\frac { \sec ^ { 3 } \theta } { 4 }\)

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