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(3*sin((pi*x)/12))'The calculation above is a derivative of the function f (x)
(3)'*sin((pi*x)/12)+3*(sin((pi*x)/12))'
0*sin((pi*x)/12)+3*(sin((pi*x)/12))'
0*sin((pi*x)/12)+3*cos((pi*x)/12)*((pi*x)/12)'
0*sin((pi*x)/12)+3*cos((pi*x)/12)*(((pi*x)'*12-(pi*x*(12)'))/(12^2))
0*sin((pi*x)/12)+3*cos((pi*x)/12)*((((pi)'*x+pi*(x)')*12-(pi*x*(12)'))/(12^2))
0*sin((pi*x)/12)+3*cos((pi*x)/12)*(((0*x+pi*(x)')*12-(pi*x*(12)'))/(12^2))
0*sin((pi*x)/12)+3*cos((pi*x)/12)*(((0*x+pi*1)*12-(pi*x*(12)'))/(12^2))
0*sin((pi*x)/12)+3*cos((pi*x)/12)*((pi*12-(pi*x*(12)'))/(12^2))
0*sin((pi*x)/12)+3*cos((pi*x)/12)*((pi*12-(pi*x*0))/(12^2))
0*sin((pi*x)/12)+3*(pi/12)*cos((pi*x)/12)
0*sin((pi*x)/12)+3*((pi*cos((pi*x)/12))/12)
(1/4)*pi*cos((pi*x)/12)
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