**Q : Identify the x-values that are solutions of each multiple choice equation:**

**1. 8cos x +4 = 0**

**A. x= 2π/3 , 4π/3**

B. x=4π/3, 5π/3

C. x = π/3 , 5π/3

D. x =π/3 , 4π/3

**2. 10cos x – 5 √(3) = 0**

**A. x =5π/6 , 7π/6**

B. x = π/6 , 11π/6

C. x = 7π/6 , 11π/6

D. x = π/6 , 7π/6

**3. 18cos x – 9 = 0**

**A. x = 4π/3 , 5π/3**

B . x = 2π/3 , 4π/3

C . x = π/3 , 5π/3

D. x = π/3 , 4π/3

Continue reading Exact values & multiple quadrant answers

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