Alexa asked for clarification on her homework question. She was not sure how to do the inverse function on the calculator. I explained, and she got the correct answer. I then sent her a sheet on inverse trig functions, and explained how to work the problems. She has to complete 5 of them on her own by Monday.
We then looked at 10.8 Practice on Inverse Functions. Given a triangle with 2 sides, she had to find one of the acute angles of the triangle. This required her to determine which trig function to use. She could then use the rule of triangle sums to find the 3rd angle of the triangle.