Which of the Following Is a Solution to the Given $2 \cos x - 1 = 0$

question 13

Multiple Choice

Which of the following is a solution to the given equation?​ $2 \cos x - 1 = 0$ ​

• A) \[x = \frac { 7 \pi } { 4 }\]
• B) \[x = \frac { \pi } { 6 }\]
• C) \(x = \frac { 7 \pi } { 6 }\)
• D) \(x = \frac { 5 \pi } { 3 }\)
• E) \(x = \frac { 3 \pi } { 4 }\)