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(2*sin(5-x))'The calculation above is a derivative of the function f (x)
(2)'*sin(5-x)+2*(sin(5-x))'
0*sin(5-x)+2*(sin(5-x))'
0*sin(5-x)+2*cos(5-x)*(5-x)'
0*sin(5-x)+2*cos(5-x)*((-x)'+(5)')
0*sin(5-x)+2*((5)'-1)*cos(5-x)
0*sin(5-x)+2*(0-1)*cos(5-x)
0*sin(5-x)+2*-1*cos(5-x)
0*sin(5-x)+2*(-cos(5-x))
-2*cos(5-x)
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