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MATH / Let f(x) = begincases k(x) &textif x>0, -frac12x&textif x< 0 0&textif x=0. endcases Find the function k(x) such that f(x) is its own inverse function. · Discussion

Discussing Let f(x) = begin{cases} k(x) &text{if }x>0, -frac1{2x}&text{if }x< 0 0&text{if }x=0. end{cases} Find the function k(x) such that f(x) is its own inverse function. · MATH

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