Question: 20. To answer questions 18-20, use the formulas for functions of the difference and sum of two angles to find, without tables or calculator,

20. To answer questions 18-20, use the formulas for functions of the

20. To answer questions 18-20, use the formulas for functions of the difference and sum of two angles to find, without tables or calculator, the cosine, sine, and tangent of 255. tan 255 = A. 3+3 3-3 B. 3-3 B. 3+3 C. 3-3 OD. 3+ 3 3+3 3-3

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