# How do you plug the inverse sin (-7/3) into the calculator?

##### 1 Answer

You will need a calculator that can return imaginary results.

#### Explanation:

If your calculator can do this problem, you should be able to plug it in just like you would for inverse

I'm confident that there is a way to do this on a calculator that is not made for it, but it will involve knowing more than I do about sines of imaginary domains.

OK, here is the formula (from wikipedia: https://en.wikipedia.org/wiki/Inverse_trigonometric_functions )

Of course, you'll still need to find a complex logarithm on your calculator.

But it can be done by hand, so there must be a way of using the calculator to make it easier.