Question Number 130714 by greg_ed last updated on 28/Jan/21
$$\left.{f}\left.\::\:\right]\mathrm{0}\:,\:\pi\right]\:\rightarrow\:\left[\mathrm{0}\:,\:\mathrm{1}\right] \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:{x}\:\:\:\: \:\:\:\mathrm{sin}\:{x} \\ $$$${f}\:\:\mathrm{injective}\:?\:{f}\:\mathrm{surjective}\:?\:{f}\:\mathrm{bijective}\:? \\ $$