Computing the arc length of the graph $y=\sqrt{x-x^2}+\arcsin(\sqrt{x})$

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Computing the arc length of the graph $y=\sqrt{x-x^2}+\arcsin(\sqrt{x})$

Is this done right?

I found the interval of this function which is $[0,1]$ I know the arc length formula is $$ L=\int_a^b\sqrt{1+(y')^2}dx$$

The derivative of the function is $$y'=\sqrt{\frac{1-x}{x}}$$ and the the square of $y'$ is $$(y')^2=\frac{1-x}{x}$$

When I plug in these results on the integral I get $$L=\int_0^1\sqrt{\frac{1}{x}d}x$$ with the substitution of $\sqrt{x}=t$ we get the result $L=2$

This is the graph of the function

enter image description here

Thanks, @DougM for pointing out my mistake