MATH 228 Lecture 21: 228-1022

If A = [a d g b e h c f i] and det A = -2, what is det[g h i 3d 3e 3f a b c]? -6 -2 2 6 0

Use the following information to answer parts a-c. U = {a, b, c, d, e, f, g, h, i, j, }: A = {a, c, e, g, i}: B = {b, d, f, h, j}: C = {a, b, d} a. Determine A intersection B': ______ b. Determine A union C: ____ c. Determine A' intersection B’: ______

44.HOW DO YOU SEE IT? The figure shows a region R bounded by a piecewise smooth simple closed path C. (a) Is R simply connected? Explain. (b) Explain why I., f(x) dr + g(y) dy = 0, where f and g are differentiable functions.