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