(i) Find whether f(x)=x+cosx is one-one....

(i) Find whether `f(x)=x+cosx` is one-one.
(ii) Identify whether the function `f(x)=-x^(3)+3x^(2)-2x+4` for `f:RtoR` is ONTO or INTO
(iii) `f(x)=x^(2)-2x,[0,3]toA`. Find whether `f(x)` is injective or not. Also find the set A if `f(x)` is surjective

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