Please help with this, thanks a lot!

Make use of your Lecture Video Notes to help you answer the questions. Show any algebraic work that you need to do in order to answer the question. Think of this in terms of showing any work or justifying any answer in order to help the reader understand what you are thinking. 1. Incos1(0.7) = 0.8, which number represents the angle? \\/ 2. Evaluate exactly: sin! (cos (47]!)) 3. Evaluate exactly: arccos (cos (%)) 4. Evaluate exactly: tan (cos_1 G)) 5. Inthe image, solve for the angle 8, rounded to the nearest tenth of a degree. 6. Find all possible exact solutions for cos(8) = %where 0