Chapter 7.2, Problem 57E

How does the following differential equation y dr + x dy = 0 satisfy the criterion for an exact differential equation? %3D

Part 1 a) Given f(z) y + x2 + i(2x2 - y?), show which points where f has a derivative. b) Show that f (z) = z2 + z - 1 does not have a derivative at any point z E C.

What are the coordinates of V after the transformation (T3--2> ° D5)(ATUV) for T(-1,-1), U(-1, 2), V(2, 1)? coordinates %3D