Below you can find the full step by step solution for you problem. We hope it will be very helpful for you and it will help you to understand the solving process.
(-2*cos(2*x))'The calculation above is a derivative of the function f (x)
(-2)'*cos(2*x)-2*(cos(2*x))'
0*cos(2*x)-2*(cos(2*x))'
0*cos(2*x)-2*-sin(2*x)*(2*x)'
0*cos(2*x)-2*-sin(2*x)*((2)'*x+2*(x)')
0*cos(2*x)-2*-sin(2*x)*(0*x+2*(x)')
0*cos(2*x)-2*-sin(2*x)*(0*x+2*1)
0*cos(2*x)-2*2*(-sin(2*x))
0*cos(2*x)-2*-2*sin(2*x)
4*sin(2*x)
| Derivative of -(sin(2x)) | | Derivative of x2-x-6/x-1 | | Derivative of (10sin(x))/(7-4sin(x)) | | Derivative of 7-4sin(x) | | Derivative of 13e^(0.1x) | | Derivative of 13e^0.1x | | Derivative of 15/x^6 | | Derivative of ln(16x)/(16x) | | Derivative of e^0.6t | | Derivative of ln(4-9x) | | Derivative of ln((2-x)/(1-x))^0,5 | | Derivative of -2*e^(-100x) | | Derivative of (7^x)/ln(7) | | Derivative of 2sin(7x)/e^t/3 | | Derivative of 2sin(7x)/e^t | | Derivative of x^7*sin(9x)^9 | | Derivative of 12/5 | | Derivative of 0.64x | | Derivative of 769x | | Derivative of e^(1-2x) | | Derivative of 5x^4/5 | | Derivative of 3x^2-11x-5/x^4 | | Derivative of 50/x^4 | | Derivative of 141cos(120(pi)x) | | Derivative of (5^(1/5))^(ln(x)) | | Derivative of 142cos(120(pi)x) | | Derivative of 142cos(120x) | | Derivative of ln(7e^-3) | | Derivative of (sin(8x))(sin(7x)) | | Derivative of 24e^(12x)-18 | | Derivative of e^(-2x)(ln(x)) | | Derivative of e^5x/x^20 |