1. Let f : R? →R be a function with continuous second partial derivatives, and define g(r, 0) = f(r cos 0,r sin 0). Prove that f, f&g, 1ôg 1 dg 72 302 r dr

Q: Given F(r, s, t) = -r(58³ + 7tº), compute: Frst

A: Frst is a third order partial, where we differentiate first with respect to r, then with respect to…

Q: Let f(x, y) = x/y. Then the directional derivative of f in the direction of √2 point (1, 1) is ○ (1,…

A:

Q: then A(-2u - 20) = -2 ---B 5 and Au 3 Au = 2 4

A: