SOLUTION: Solve the equation. 0 is less than or equal to theta and theta is less than 2 pi. -4 + cos (-theta + 11pi/6) = -4

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Question 753094: Solve the equation. 0 is less than or equal to theta and theta is less than 2 pi.
-4 + cos (-theta + 11pi/6) = -4

Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the equation. 0 is less than or equal to theta and theta is less than 2 pi.
-4 + cos (-theta + 11pi/6) = -4
cos (-theta + 11pi/6) = 0
..
-theta + 11pi/6=π/2
theta=11π/6-π/2
theta=11π/6-3π/6=8π/6
theta=4π/3
or
-theta + 11pi/6=3π/2
theta=11π/6-3π/2
theta=11π/6-9π/6=2π/6
theta=π/3
..
theta=4π/3, π/3