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 how to use inverse cosine on this calculator

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how do i use the inverse on trigonimical ratios

 Feb 27, 2015

Best Answer 

 #1
avatar+118723 
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inverse cosine is the same as arc cosine

so use   acos

 Feb 27, 2015

1+0 Answers

 #1
avatar+118723 
+5
Best Answer

inverse cosine is the same as arc cosine

so use   acos

Melody Feb 27, 2015

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