\"\"

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The equations are \"\" , \"\" , \"\" and  \"\".

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Consider  \"\".

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\"\".

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Graph the equations \"\" , \"\" , \"\" and  \"\".

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Shade the region bounded by the graphs.

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\"\"

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Observe the graph:

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Area of the region bounded by  \"\" , \"\" , \"\" and  \"\".

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\"\"

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The area enclosed by the curves is \"\".

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\"\"

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\"\"

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\"\".

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\"\"

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Graph of the equations \"\" , \"\" , \"\" and  \"\".

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\"\"

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\"\".