2. Sketch the region bounded by Z= z=9−(x² + y²). and
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:2. Sketch the region bounded by
z = 9−(x² + y²).
11
and
3. If the curve z=x² in the xz-plane is revolved about the
z -axis, the resulting surface has equation z = x² + y²,
obtained as a result of replacing x by √x² + y² . If y=2x² in
the xy -plane is revolved about the y -axis, what is the
equation of the resulting surface?
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