SOLUTION: Find all values of x in the interval [0, 2π] that satisfy the inequality. (Enter your answer using interval notation.)
2 cos(x) + 1 > 0
Algebra ->
Trigonometry-basics
-> SOLUTION: Find all values of x in the interval [0, 2π] that satisfy the inequality. (Enter your answer using interval notation.)
2 cos(x) + 1 > 0
Log On
Question 651417: Find all values of x in the interval [0, 2π] that satisfy the inequality. (Enter your answer using interval notation.)
2 cos(x) + 1 > 0
You can put this solution on YOUR website! Find all values of x in the interval [0, 2π] that satisfy the inequality. (Enter your answer using interval notation.)
2 cos(x) + 1 > 0
2cos(x) > -1
cos(x) > -1/2
solution:
(0,2π/3) U (4π/3,2π)
(