1. (6.01, 6.03) (10 points) Original Problem sec sin tan 0 + cot 0 sec 0 1. sin + tan cot 0 Cos 2. cos + sin COS A sin sin 1 3. + cos 0 sin 4. sec + cos 0 Students were asked to simplify the expression sec sin tan + cot 0 A student's work is given above. It contains two errors. Part A: (3 points) Which line contains the first error? What would that line look like, if there were no mistake? Part B: (3 points) Which line contains a second error? Assuming all previous lines are correct, what would that line look like, if there were no mistake? Part C: (4 points) Simplify the left side of the identity to look like the right side, showing all the steps and Trigonometric Identities. sec sin tan 0+ cot 0 sin 0