\"\"

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The functions are \"\", \"\" and \"\".

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Graph the functions:

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\"\"

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Observe the graph:

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As \"\"  tends to \"\", \"\"approaches to \"\".

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As \"\"  tends to \"\", \"\" approaches to \"\".

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As \"\"  tends to \"\", \"\" approaches to \"\".

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The values of \"\" and \"\" approaches to \"\", then ratio of it also approaches to \"\".

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\"\"

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\"\".

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\"\"

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\"\".