Find exact value of each expression

sec^-1 (2root3) / 5

I have no idea what to do to make that into a value. I know that sec^-1 is in quadrants one and two, but I'm not sure how to use that to solve the problem.
Thank you!

1 answer

This is a trick question.

2√3/5 = 0.69

but sec(x) is never less than 1.