Find the first and second derivative of the function. G(r) =the square root of r + the 7th root of r

Answer 1

G(r) = r^1/2 + r^1/7 (Did I read it correctly?)

G'(r) = 1/2 * r^-3/2 + 1/7 * r^-6/7

G"(r) = -3/2 * 1/2 * r^-5/2 -6/7 * 1/7 * r^-13/7

= -3/4 * r^-5/2 -6/49 * r^-13/7