SOLUTION: Help! Question Find the exact solution to the equation in the interval [2π, 3π]. cos (t) = 1/2

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Question 1003540: Help!
Question Find the exact solution to the equation in the interval [2π, 3π].
cos (t) = 1/2

Found 2 solutions by ikleyn, lwsshak3:
Answer by ikleyn(52802) About Me  (Show Source):
You can put this solution on YOUR website!
.
Hey, do not panic!

Solve it first in the conventional interval [0, 2pi) and then add 2pi.

Do you know what the cosines is?

2pi is one full revolution from the zero angle.

You are able to solve it yourself.

Good luck.


Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find the exact solution to the equation in the interval [2π, 3π].
cos (t) = 1/2
t=π/3, 5π/3,7π/3,