 # Get instant live expert help on I need help with inverse cosine excel “My Excelchat expert helped me in less than 20 minutes, saving me what would have been 5 hours of work!”

## Post your problem and you’ll get expert help in seconds.

Our professional experts are available now. Your privacy is guaranteed.

## Here are some problems that our users have asked and received explanations on

I need help writing a formula which is basically the inverse of another formula.
Solved by G. F. in 21 mins
=ATAN((COSB2*PI()/180)/(TANA3*PI()/180)) Can you tell me why this formulae that I have put into XL is showing the result #NAME? I want to calculate the value of inverse tan of the cosine of cell B2 divided by the Tan of cell A3. I need the answer in degrees not radians. I have a range of cells that I need to do this operation on Can you spot the syntax error I am making? Cheers, John
Solved by K. Y. in 29 mins
I am trying to complete a normal inverse function but it is not allowing me
Solved by V. U. in 23 mins
I was working with an expert yesterday to create the inverse of an existing function.
Solved by Z. W. in 12 mins
I need to delete additive inverse of numbers in a huge data file.!
Solved by K. Q. in 26 mins