Consider the solid that lies above the square (in the xy-plane) R = [0, 2] x [0, 2], and below the elliptic paraboloid z = 25 – 2² – 2y?. (A) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the lower left hand corners. (B) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the upper right hand corners. (C) What is the average of the two answers from (A) and (B)?
Consider the solid that lies above the square (in the xy-plane) R = [0, 2] x [0, 2], and below the elliptic paraboloid z = 25 – 2² – 2y?. (A) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the lower left hand corners. (B) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the upper right hand corners. (C) What is the average of the two answers from (A) and (B)?
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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Step 1
(a) For the lower left corner we have: (0,0)-(0,1)-(1,0)-(1,1) and evaluate the function at these points:
z(0,0)=25
z(0,1)=25-2=23
z(1,0)=25-1=24
z(1,1)=25-1-2=22
the little squares are (1x1) so their surface is 1 therefore the volume is 1[25+23+24+22]=94
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