1. (10 pts) Find a, b, and c for the function f(x) = asin(bx + c) such that the graph of f matches the figure. -3+ 2. (20 pts) Find the exact value of the following expression. (a) arccos cos 2" ) (b) sec arctan -73. (10 pts) Verify the following identity. (sin x - cos x)2 = 1 - sin 2x 4. (20 pts) Solve the following equation. sin x + 2 cos x = 25. (20 pts) Find the exact values of sin 3u when cotu = 2, It