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wheres the inverse of cosine

 Nov 30, 2015

Best Answer 

 #2
avatar+33665 
+5

Press the 2nd button, then use acos (which is the same as cos-1)

 Nov 30, 2015
 #1
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+5

Press "2nd" key first. Then you will see "acos", which is the same as the Inverse cosine or cos^-1.

 Nov 30, 2015
 #2
avatar+33665 
+5
Best Answer

Press the 2nd button, then use acos (which is the same as cos-1)

Alan Nov 30, 2015

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