Find the Derivative of the Function at the Given Value $$f ( x ) = x \sin ( 10 x ) ; x = 8$$

question 20

Multiple Choice

Find the derivative of the function at the given value of x using a graphing utility. If necessary, round to four decimal
places.
- $$f ( x ) = x \sin ( 10 x ) ; x = 8$$

• A) -9.8247
• B) -7,950.7128
• C) -8.8297
• D) 7,950.7128

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