Solve the Following Equation $$4 \cos x + 2 = 0$$

question 37

Multiple Choice

Solve the following equation.​ $$4 \cos x + 2 = 0$$ ​

• A)​ \(\frac { 4 \pi } { 3 } + n \pi , \frac { 2 \pi } { 3 } + n \pi\)
• B)​ \[\frac { 2 \pi } { 3 } + 2 n \pi , \frac { 4 \pi } { 3 } + 2 n \pi\]
• C)​ \[\frac { 7 \pi } { 6 } + 2 n \pi , \frac { 11 \pi } { 6 } + 2 n \pi\]
• D)​ \(\frac { \pi } { 3 } + n \pi , \frac { \pi } { 3 } + n \pi\)
• E)​ \(\frac { \pi } { 2 } + n \pi , \frac { 2 \pi } { 5 } + n \pi\)

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