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SELF DOUBT MADE EASY
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How to check whether this function is $SURJECTIVE$ or $NOT$?
madeeasytestseries
asked
Nov 12, 2019
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Mathematical Logic
by
Debapaul
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GAITONDE gave u an answer about this i think.
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Where?
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Here $0$ mapped twice.
when $x=0$, function gives $0$, when $x=2$ function gives $0.$
So, not one to one.
And not onto, because it only maps even numbers.
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