How do you calculate Arccosine and Arctangent if you do not have a scientific calculator.(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\theta = atan(\frac{y}{x})[/tex]

[tex]\theta2 = acos(\frac{z}{\sqrt{x^2+y^2+z^2}})[/tex]

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# Manually calculate Arccosine and Arctangent

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