Question

найти производную 3х^2-1/x^3.;
(х/3+7)^6
e^xcosx

Answer 1

1) 6x - (-3)*x^(-3-1) = 6x + 3x^(-4)
2) (6*(x/3 + 7)^5)*(-3*x^(-4)) = -18*x^(-4) * (x/3 + 7)^5
3) e^x * cosx - e^x * sinx = e^x * (cosx - sinx)