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1.26=cosA how do i separate A

 Jan 9, 2017
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Take the arccosine of both sides.

\(\cos A = 1.26\\ \arccos \cos A = \arccos 1.26\\ A = \arccos 1.26\)

I am too lazy for the calculator. 

~The smartest cookie in the world

 Jan 9, 2017
edited by MaxWong  Jan 9, 2017

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