Question: 7. (12 pts) In AABC, b = 10, B = 40, and A = 30. Calculate a to the nearest tenth. 8. (12 pts) In

7. (12 pts) In AABC, b = 10, B = 40, and A = 30. Calculate a to the nearest tenth. 8. (12 pts) In AABC, a = 16.1, b = 9.8, and c = 11.2. Calculate B to the nearest tenth.10 pts) Graph the function, and determine the amplitude, period, and phase shift: y = - cos (x - 7) - 1 6. (10 pts) Prove the following identity: cosx = sec x - sin r tan c

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