# How do you simplify tan(arcsinx)?

$\frac{x}{\sqrt{1 - {x}^{2}}} , - 1 \le x \le 1$.
Let $a = a r c \sin x \in Q 1 \mathmr{and} Q 4.$
the given expression is $\tan a = \frac{x}{\sqrt{1 - {x}^{2}}} , - 1 \le x \le 1$.