$\text { Find the derivative of the function } f ( x ) = - 5 x ^ { 3 } - 2 \sin ( x ) \text {. }$

question 175

Multiple Choice

$\text { Find the derivative of the function } f ( x ) = - 5 x ^ { 3 } - 2 \sin ( x ) \text {. }$

• A) \(f ^ { t } ( x ) = - 15 x ^ { 2 } + 2 \cos ( x )\)
• B) \(f ^ { t } ( x ) = - 10 x ^ { 2 } - 2 \cos ( x )\)
• C) \(f ^ {t } ( x ) = - 5 x ^ { 2 } - 2 \cos ( x )\)
• D) \(f ^ {t } ( x ) = - 5 x ^ { 2 } + 2 \cos ( x )\)
• E) \(f ^ { t } ( x ) = - 15 x ^ { 2 } - 2 \cos ( x )\)