$\"\"$

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(a)

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The inequality is $\"\"$ .

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$\"\"$

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Therefore the value of $\"\"$ can have a values greater than $\"\"$ .

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$\"\"$

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(b)

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Statement : $\"\"$ .

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Definition :

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If $\"\"$ be the function is defined on $\"\"$ then $\"\"$ ,

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it means that for every $\"\"$ there is a corresponding number $\"\"$ such that if $\"\"$ then $\"\"$ .

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The function is $\"\"$ .

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From the definition,

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If $\"\"$ then $\"\"$ .

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Consider $\"\"$ for $\"\"$ .

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Then $\"\"$ since $\"\"$ .

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$\"\"$

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Therefore from the definition, $\"\"$ .

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$\"\"$

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(a) $\"\"$ .

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(b) $\"\"$ .