$x = 8 t \sin s , y = 8 t \cos s$

question 74

Multiple Choice

$\text { Find } \frac { \partial w } { \partial s } \text { using the appropriate Chain Rule for } w = x ^ { 2 } + y ^ { 2 } + z ^ { 2 } \text { where }$ $x = 8 t \sin s , y = 8 t \cos s$ , and $z = 8 s t ^ { 2 }$

• A) \(64 s t ^ { 4 }\)
• B) \(128 s ^ { 4 } t\)
• C) \(16 s ^ { 4 } t\)
• D) \(1285 t ^ { 4 }\)
• E) \(16 s t ^ { 4 }\)

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