User:Lalala
From WikiEducator
hello i´m lalala i´m from munich i want to show how you can calculate this exercise if you are to stupid for this if you have any more questions you can call me on 0190/666999 mfg lalala (only 1 cent/min)
f(x)=(cos(2x³))²
====>f `(x)=2*(cos(2x³))*(-sin(2x³))*6x²
