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(4*sin(2*x)*cos(2*x))'The calculation above is a derivative of the function f (x)
(4*sin(2*x))'*cos(2*x)+4*sin(2*x)*(cos(2*x))'
((4)'*sin(2*x)+4*(sin(2*x))')*cos(2*x)+4*sin(2*x)*(cos(2*x))'
(0*sin(2*x)+4*(sin(2*x))')*cos(2*x)+4*sin(2*x)*(cos(2*x))'
(0*sin(2*x)+4*cos(2*x)*(2*x)')*cos(2*x)+4*sin(2*x)*(cos(2*x))'
(0*sin(2*x)+4*cos(2*x)*((2)'*x+2*(x)'))*cos(2*x)+4*sin(2*x)*(cos(2*x))'
(0*sin(2*x)+4*cos(2*x)*(0*x+2*(x)'))*cos(2*x)+4*sin(2*x)*(cos(2*x))'
(0*sin(2*x)+4*cos(2*x)*(0*x+2*1))*cos(2*x)+4*sin(2*x)*(cos(2*x))'
(0*sin(2*x)+4*2*cos(2*x))*cos(2*x)+4*sin(2*x)*(cos(2*x))'
8*cos(2*x)*cos(2*x)+4*sin(2*x)*(cos(2*x))'
8*cos(2*x)*cos(2*x)+4*sin(2*x)*-sin(2*x)*(2*x)'
8*cos(2*x)*cos(2*x)+4*sin(2*x)*-sin(2*x)*((2)'*x+2*(x)')
8*cos(2*x)*cos(2*x)+4*sin(2*x)*-sin(2*x)*(0*x+2*(x)')
8*cos(2*x)*cos(2*x)+4*sin(2*x)*-sin(2*x)*(0*x+2*1)
8*cos(2*x)*cos(2*x)+4*sin(2*x)*2*(-sin(2*x))
8*cos(2*x)*cos(2*x)+4*sin(2*x)*-2*sin(2*x)
8*(cos(2*x))^2-(8*(sin(2*x))^2)
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