Is f: R R , f(x)= x is many-one function? - Vidyadip

Question

Is $f: R \rightarrow R , f(x)=\sin x$ is many-one function?

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Answer

$f: R \rightarrow R , f(x)=\sin x$ is many-one function because $\sin x$ is recurring function or for more than one angles $\sin x$ has same value.

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