
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Need help with parts (d) and (e). Thank you :)

Transcribed Image Text:1. (a) Find the area of one petal of the rose r = |cos(20) 3.
(b) Find a vector orthogonal to the direction of most rapid increase of f(x,y) = e" sin z at the
point (, 0), and give the rate of change of f(r, y) at that point in that direction.
(c) Let D C R? be a closed and bounded set, and let f(x, y) be a bounded function whose
domain contains D. Must f achieve a maximum on D? Justify your answer.
(d) Let P = r? – y², Q = -2ry and C denote the ellipse centered at (0,0) and passing through
the points (0, 1) and (2,0). Compute the line integral fe P dx + Q dy.
(e) If E C R³ is the ellipsoid (z/2)² + (y/3)² + (z/4)² = 1 and F
evaluate the integral ffE curl F - n dS.
(3²e=v=, z?e=y², z²e=y=),
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