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Calculate the area of the region bounded by the curves and . A graph of this region is shown to the right.. . 

Enclosed region with curves, starting @ (negative 2 pi, comma 0), turning at the approximate following points: down & right @, (negative 1 half pi, comma 3 halves pi), turning down & left @, (pi, comma 1 fourth pi), turning up & right @, (1 fourth pi, comma negative 1 half pi), turning up & right @, (negative 1 fourth pi, comma negative 1 fourth pi), turning up & left @, (1 half pi, comma 1 half pi), turning down & left @, (negative 1 half pi, comma pi), ending at the starting point.

Determine the bounds for each curve.

Use the eTool below to help solve the problem.
Click on the link to the right to view the full version of the eTool. Calc 8-81 HW eTool