Math

If the inverses of two functions are both functions, will the inverse of the sum or difference of the original functions also be a function? Explain your reasoning.

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  1. what if
    y = x^3 ----> y =x^1/3 is function
    y = x ---> y = x is function

    2 y = x^3 + x ---> y+y^3 = 2x

    y(1+y^2) =2 x
    for x = 0
    y = 0 or y = +/-i

    more than one value off y for x = 0, no, no for function

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