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cos-1 (cos x°) = cos-1 (0.92307692)

Can someone solve this for me? I dont have a scientific caculator

 Feb 18, 2016
 #1
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This says that

 

cos x = (0.92307692)

 

So.......taking the cosine inverse, we have

 

arccos (0.92307692) = x =  about 22.6°

 

 

 

cool cool cool

 Feb 18, 2016

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