Hi, I have this practice set of TWO math questions that I'm stuck on. This is for Pre-Calculus with trigonometry as the main focus.

Please show work on how you got that conclusion that way I can learn from it. You do not need to explain, just show work please and thank you. Simplify everything please. Imaginary solutions, answers when appropriate etc. Domains should be written in interval notation. Please write neatly so I can read it thank you.

I will endorse anyone who helped me

9.2E - Practice Set Question 6 Find the following and sketch each triangle on the unit circle: 71: 71': a) 656 b) cos 6 4 Question 8 A survey team is trying to estimate the height of a tower above a level plain. From one point on the plain, they observe that the angle of elevation to the top of the tower is 30\". From a point 3250 feet closer to the tower along the plain, they nd that the angle of elevation is 40" How high (in feet) is the tower? Draw a diagram and round answers to the nearest tenth . Solve for x: b) l\""| i' 400l