(D) Note that f(g(u)) = tan−^1 (e^2 u); then the derivative is .
(D) Let . Then cos (xy)[xy′ + y] = y′. Solve for y′.
(E)
(D) Note that f(g(u)) = tan−^1 (e^2 u); then the derivative is .
(D) Let . Then cos (xy)[xy′ + y] = y′. Solve for y′.
(E)