Find the derivative of the function at the given value of x using a graphing utility. If necessary, round to four decimal
places.
-$$f ( x ) = 4 x \cos x ; x = \frac { \pi } { 2 }$$

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The Answer of Find the derivative of the function at the given value of x using a graphing utility. If necessary, round to four decimal
places.
-$$f ( x ) = 4 x \cos x ; x = \frac { \pi } { 2 }$$

Find the Derivative of the Function at the Given Value f(x)=4xcos⁡x;x=π2f ( x ) = 4 x \cos x ; x = \frac { \pi } { 2 }f(x)=4xcosx;x=2π​

Find the Derivative of the Function at the Given Value $f ( x ) = 4 x \cos x ; x = \frac { \pi } { 2 }$