# Calculus 4: Function

Calculus Level 3

$\large \int_0^1 ~ \frac{1+a^2-2a}{\sqrt[]{a}} ~ \mathrm{d}a$

If value of the above integral is of the form $$\dfrac{A}{B}$$, where $$A$$ and $$B$$ are coprime positive integers, find the value of $$A -B$$.

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