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

Consider $\"\"$ .

$\"\"$ .

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

Shade the region bounded by the graphs.

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Observe the graph :

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

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

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$\"\"$ .

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

$\"\"$

$\"\"$ .