Let `f:R to R` where `f(x) =sin x.` Show that `f ` is into. Also find – InterviewSolution

1.	Let `f:R to R` where `f(x) =sin x.` Show that `f ` is into. Also find the codomain if `f` is onto.
Answer» `f:R to R, f(x) =sinx` Range of the function is `[-1,1],` which is subset of codomain R. So, `f(x)` is into. To make `f(x)` onto, we modify the codomain to `[-1,1].`

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