(a) Use cylindrical coordinates to evaluate the integral 6 √36-y² f (x² + y²)³/2dzdxdy. Sketch the 36-y -6 region of integration.
(a) Use cylindrical coordinates to evaluate the integral 6 √36-y² f (x² + y²)³/2dzdxdy. Sketch the 36-y -6 region of integration.
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:Question 2
(a) Use cylindrical coordinates to evaluate the integral 36-y
√36-(x² + y²3¹/2dzdxdy. Sketch the
36
-6
region of integration.
(b) A cake is shaped like a hemisphere of radius 4 with base on the xy-plane. A wedge of cake is removed
by making two cuts from the center of the cake outward, perpendicular to the xy-plane and separated by
an angle of .
(b1) Use a double integral to find the volume of the slice for
(b2) Now suppose that the cake is shaped like a cylinder with the same radius and you take a slice in
the same way with the same angle. How high the cake should be so that you get the same amount of
cake as in part (bl)?
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