SOLUTION: Find two values of θ, 0 ≤ θ < 2π, that satisfy the given trigonometric equation.
cos θ = − 1/2
Algebra ->
Trigonometry-basics
-> SOLUTION: Find two values of θ, 0 ≤ θ < 2π, that satisfy the given trigonometric equation.
cos θ = − 1/2
Log On
You can put this solution on YOUR website! Find two values of θ, 0 ≤ θ < 2π, that satisfy the given trigonometric equation.
cos θ = − 1/2
---------
arccos(-1/2) = 180-60 = 120 degrees = (2/3)pi
---
OR
arccos(-1/2) = 180+60 = 240 degrees = (4/3)pi
--------------------------
Cheers,
Stan H.
(