Calculating Area with Cylindrical Shells in Rotated Region

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SUMMARY

The discussion focuses on calculating the volume of the solid formed by rotating the region bounded by the graphs of x = y - y³, y = 0, x = 1, and y = 1 about the line y = 1 using cylindrical shells. The average radius is defined as y, and the altitude is given by x = y - y³. Participants emphasize the need to clarify whether the task is to find the area or the volume of the solid, suggesting that the problem likely pertains to volume due to the nature of the rotation.

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determine the area of the region bounded by the grpahs of x=y-y^3, y=0,x=1,y=1, rotated about y=1; using cylyndrical shells



avegage radius y, altitude=x=y-y^3, y intercepts 0 ,1 ?
 
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nameVoid said:
determine the area of the region bounded by the grpahs of x=y-y^3, y=0,x=1,y=1, rotated about y=1; using cylyndrical shells



avegage radius y, altitude=x=y-y^3, y intercepts 0 ,1 ?

0 and 1 are the y intercepts, yes. Why don't you try and actually solve the problem? Are you sure they want you to find area, not volume?
 
Three questions:
What work have you done?
Have you graphed the region?
What is the exact problem? Since you said that a region is to be rotated about the line y = 1, it would appear that you want the volume of this solid of rotation rather than the area of some region.
 

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