Don't know the steps in finding this derivative.
But the derivative is
Now simplify:
The answer is:
/ _________\ / / _________\ / _________\ \ sin\\/ 4*x - 1 / |sin\\/ 4*x - 1 / 2*cos\\/ 4*x - 1 /*log(log(5*x))| (log(5*x)) *|---------------- + --------------------------------| | x*log(5*x) _________ | \ \/ 4*x - 1 /
/ 2 \ / __________\ |/ / __________\ / __________\ \ / __________\ / __________\ / __________\ / __________\ / __________\ | sin\\/ -1 + 4*x / ||sin\\/ -1 + 4*x / 2*cos\\/ -1 + 4*x /*log(log(5*x))| sin\\/ -1 + 4*x / sin\\/ -1 + 4*x / 4*log(log(5*x))*sin\\/ -1 + 4*x / 4*cos\\/ -1 + 4*x /*log(log(5*x)) 4*cos\\/ -1 + 4*x / | (log(5*x)) *||----------------- + ---------------------------------| - ----------------- - ----------------- - --------------------------------- - --------------------------------- + -----------------------| || x*log(5*x) __________ | 2 2 2 -1 + 4*x 3/2 __________ | \\ \/ -1 + 4*x / x *log(5*x) x *log (5*x) (-1 + 4*x) x*\/ -1 + 4*x *log(5*x)/
/ 3 \ / __________\ |/ / __________\ / __________\ \ / / __________\ / __________\ \ / / __________\ / __________\ / __________\ / __________\ / __________\ \ / __________\ / __________\ / __________\ / __________\ / __________\ / __________\ / __________\ / __________\ / __________\ / __________\ | sin\\/ -1 + 4*x / ||sin\\/ -1 + 4*x / 2*cos\\/ -1 + 4*x /*log(log(5*x))| |sin\\/ -1 + 4*x / 2*cos\\/ -1 + 4*x /*log(log(5*x))| |sin\\/ -1 + 4*x / sin\\/ -1 + 4*x / 4*log(log(5*x))*sin\\/ -1 + 4*x / 4*cos\\/ -1 + 4*x /*log(log(5*x)) 4*cos\\/ -1 + 4*x / | 8*cos\\/ -1 + 4*x /*log(log(5*x)) 2*sin\\/ -1 + 4*x / 2*sin\\/ -1 + 4*x / 3*sin\\/ -1 + 4*x / 24*log(log(5*x))*sin\\/ -1 + 4*x / 24*cos\\/ -1 + 4*x /*log(log(5*x)) 12*sin\\/ -1 + 4*x / 12*cos\\/ -1 + 4*x / 6*cos\\/ -1 + 4*x / 6*cos\\/ -1 + 4*x / | (log(5*x)) *||----------------- + ---------------------------------| - 3*|----------------- + ---------------------------------|*|----------------- + ----------------- + --------------------------------- + --------------------------------- - -----------------------| - --------------------------------- + ------------------- + ------------------- + ------------------- + ---------------------------------- + ---------------------------------- - --------------------- - ------------------------ - ------------------------ - -------------------------| || x*log(5*x) __________ | | x*log(5*x) __________ | | 2 2 2 -1 + 4*x 3/2 __________ | 3/2 3 3 3 3 2 2 5/2 x*(-1 + 4*x)*log(5*x) 3/2 2 __________ 2 __________ 2 | \\ \/ -1 + 4*x / \ \/ -1 + 4*x / \ x *log(5*x) x *log (5*x) (-1 + 4*x) x*\/ -1 + 4*x *log(5*x)/ (-1 + 4*x) x *log(5*x) x *log (5*x) x *log (5*x) (-1 + 4*x) (-1 + 4*x) x*(-1 + 4*x) *log(5*x) x *\/ -1 + 4*x *log(5*x) x *\/ -1 + 4*x *log (5*x)/