$$$\operatorname{acos}{\left(5 \right)}$$$

求$$$\operatorname{acos}{\left(5 \right)}$$$。

$$$\operatorname{acos}{\left(5 \right)}\approx 2.292431669561178 i$$$A

$$$\operatorname{acos}{\left(5 \right)} = \left(\frac{180 \operatorname{acos}{\left(5 \right)}}{\pi}\right)^{\circ}\approx \left(131.346659487984425 i\right)^{\circ}$$$A

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