$$\sqrt{ \frac{ 32+61+75+82+90 }{ 5 } -69 }$$
$\text{Indeterminate}$
$$\sqrt{\frac{93+75+82+90}{5}-69}$$
$$\sqrt{\frac{168+82+90}{5}-69}$$
$$\sqrt{\frac{250+90}{5}-69}$$
$$\sqrt{\frac{340}{5}-69}$$
$$\sqrt{68-69}$$
$$\sqrt{-1}$$
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