Find f'(x) and f'(c) (function) f(x)=sinx/x , (value of c) c=pi/3

Find f(x)=six/x, c=pi/3, find f'(x) and f'(c)
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2 Answers

y=sine(x)/x . . .

av form d(uv)=udv/dx +v*du/dx

dy/dx=[kosine(x)/x ] -sine(x)/x^2

me thank yu wanna EVALUATE y at x=pi/3=60 deg

or x=1.04719755 radians

y=kosine(60)/1.04719755 -sine(60)/1.04719755^2 . .

=0.5/1.04719755 -0.866025408/1.096622709...

=0.477464829 -0.789720472...

=-0.312255643
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