Question 831652
Find all values of x in the interval [0, 2π] that satisfy the inequality. (Enter your answer using interval notation.)
4 cos(x) + 2 > 0
***
4cos(x) + 2 > 0
4cos(x) > -2
cos(x) > -1/2
solution:
[0,2π/3) U (4π/3,2π]