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Find the Derivative of the Function f(s)=9ssin⁡s+5cos⁡s.f ( s ) = 9 s \sin s + 5 \cos s .

Question 127

Multiple Choice

Find the derivative of the function. f(s) =9ssin⁡s+5cos⁡s.f ( s ) = 9 s \sin s + 5 \cos s .


A) ft(s) =9ssin⁡s−4cos⁡sf ^ { t } ( s ) = 9 s \sin s - 4 \cos s
B) ft(s) =9scos⁡s+4sin⁡sf ^ { t } ( s ) = 9 s \cos s + 4 \sin s
C) ft(s) =9ssin⁡s−9cos⁡sf ^ { t} ( s ) = 9 s \sin s - 9 \cos s
D) ft(s) =−9ssin⁡s+4cos⁡sf ^ { t} ( s ) = - 9 s \sin s + 4 \cos s
E) ft(s) =9scos⁡s+5sin⁡sf ^ { t } ( s ) = 9 s \cos s + 5 \sin s

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