SOLUTION: I need to know the inverse of cosine of cos 2/7
The problem is written out like this:
cos^-1(cos 2/7)
I can do it on the calculator but its not supposed to be worked on the
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-> SOLUTION: I need to know the inverse of cosine of cos 2/7
The problem is written out like this:
cos^-1(cos 2/7)
I can do it on the calculator but its not supposed to be worked on the
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Question 607371: I need to know the inverse of cosine of cos 2/7
The problem is written out like this:
cos^-1(cos 2/7)
I can do it on the calculator but its not supposed to be worked on the calculator. Help please?? Answer by Alan3354(69443) (Show Source):
