- #1

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## Homework Statement

k(x)=x

^{2}*[1/x] for 0<x≤1

k(x)=0 for x=0

Find where k(x) is differentiable and find the derivative

## Homework Equations

## The Attempt at a Solution

I know that it is differentiable for all ℝ\Z on (0,1], but I am unsure how to find the derivative for this problem.