1. Determine the missing angle on the following diagrams using the primary trigonometric ratios. (2 marks) 23 16cm 2. Determine the missing length in the following diagram using the Sine Law. (2 marks) 19 cm XOITI 3. Determine the missing angle in the following diagram using the Cosine Law. (2 marks) 16.2 m 30.3 m 18.3 m 4. Determine the number of triangles possible given the following scenario, and sketch a diagram representing the scenario.(4 marks- 1 for sketch, 2 for calculations and 1 for conclusion) a=6, b=10, 44:33" 5. At noon, two tracking stations on Earth, 20 km apart, measure the angles of elevation of a rocket that was launched with a weather satellite. From Station A, the angte of elevation is 41 and from Station B it is 75. Find the altitude of the rocket to the nearest tenth. Note: Both tracking stations are on the same side of the rocket. Include a sketch. (5 matks) 7. Prove each of the following trigonometric identities. cos: sin: + = sin: + cos: a) cot: tam." (2 marks) 53621\" l sing: 1 sinzr (3 marks) ' 2 + sear - (sex I (sinr + 0.51")2 = C) seer - cscr (4 marks) \\ /