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Given that $y$ is defined by:

$$\int _{ x }^{ 10 }{\sqrt { t+2 } dt } $$

...find $\dfrac{dy}{dx}$.

$\sqrt {( x+2 ) }$

$\sqrt {( -x+2 ) }$

$-\sqrt{ ( x+2 ) }$

$\sqrt {( x+2 )} -\sqrt {12}$