求下列函数的自然定义域：
$\left(1\right)y=\sqrt{3x+2}$；
$\left(2\right)y=\dfrac{1}{1-{x}^{2}}$；
$\left(3\right)y=\dfrac{1}{x}-\sqrt{1-{x}^{2}}$；
$\left(4\right)y=\dfrac{1}{\sqrt{4-{x}^{2}}}$；
$\left(5\right)y=\sin \sqrt{x}$；
$\left(6\right)y=\tan \left(x+1\right)$；
$\left(7\right)y=arc\sin \left(x-3\right)$；
$\left(8\right)y=\sqrt{3-x}+arc\tan \dfrac{1}{x}$；
$\left(9\right)y=\ln \left(x+1\right)$；
$\left(10\right)y={e}^{\dfrac{1}{x}}$.
[题目]求下列函数的自然定义域:-|||-(1) =sqrt (3x+2);-|||-(2) =dfrac (1)(1-{x)^2}-|||-(3) =dfra
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