How do you use a calculator to evaluate #cos^-1 (0.55)# in both radians and degree?
1 Answer
Apr 13, 2018
On most trig function calculators, 2nd > cos (this should give you cos^-1) and input your values.
Explanation:
To change the mode of your calculator, hit mode and you should be able to scroll down to change to and from degrees and radians.
