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Definition of Function

Which among t...

Question

Which among the following is\are function(s)

A

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B

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C

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D

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Solution

The correct option is D
In figure $(iii)$ element $D$ has two images $(2 and 3)$ and as per definition of function each element in set $A$ should have only one image.
So, only figure $(iii)$ does not represent a function.

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Definition of Function

Standard XIII Mathematics

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