$\"\"$

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The function is $\"\"$ for $\"\"$ ,

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Graph the function $\"\"$ , $\"\"$ .

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$\"\"$

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$\"\"$

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The function is $\"\"$ for $\"\"$ .

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Graph the function $\"\"$ , $\"\"$ .

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$\"\"$

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$\"\"$

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The function is $\"\"$ for $\"\"$ .

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Graph the function $\"\"$ , $\"\"$ .

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$\"\"$

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$\"\"$

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Observe the graphs of $\"\"$ , $\"\"$ and $\"\"$ .

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The graphs lies between the bounding curves $\"\"$ , $\"\"$ and $\"\"$ respectively,

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touching at odd multiples of $\"\"$ .

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All $\"\"$ -intercepts are in the multiples of $\"\"$ .

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$\"\"$

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Graph of the function $\"\"$ , $\"\"$ .

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$\"\"$

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Graph of the function $\"\"$ , $\"\"$ .

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$\"\"$

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Graph of the function $\"\"$ , $\"\"$ .

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$\"\"$

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The graphs lies between the bounding curves $\"\"$ , $\"\"$ and $\"\"$ respectively,

\

touching at odd multiples of $\"\"$ .

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All $\"\"$ -intercepts are in the multiples of $\"\"$ .