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Definition of Function

Which among t...

Question

Which among the following relations defined on $R$ is/are functions

A

(i)

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B

(i i)

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C

(i v)

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D

(v)

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Solution

The correct option is D $(v)$
We know that if a vertical line parallel to $y$ axis for the curve cuts the graph at one point then it represents a function.

$∴ (i), (i v), (v)$ represents functions

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Definition of Function

Standard XII Mathematics

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