$$\text { Find the value of } d ^ { 2 } y / d x ^ { 2 } \text { at the point defined by the given value of } t \text {. }$$

question 385

Multiple Choice

$$\text { Find the value of } d ^ { 2 } y / d x ^ { 2 } \text { at the point defined by the given value of } t \text {. }$$
- $$x = 3 \sin t , y = 3 \cos t , t = \frac { 3 \pi } { 4 }$$

• A) \(2 \sqrt { 2 }\)
• B) \(- 2\)
• C) \(- \frac { 2 \sqrt { 2 } } { 3 }\)
• D) \(\frac { \sqrt { 2 } } { 3 }\)

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