SOLUTION: The answer must be in radians. Thanks! Sin2x = -1

Question 1045453: The answer must be in radians. Thanks!
Sin2x = -1
Found 2 solutions by oscargut, ikleyn:
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
sin(2x) = -1
2x = 3pi/2
Answer: x = 3pi/4
If you need more help you can contact me at mthman@gmail.com
Answer by ikleyn(52847) (Show Source): You can put this solution on YOUR website!
.
The answer must be in radians. Thanks!
Sin2x = -1
~~~~~~~~~~~~~~~~~~~~~~~

The post of tutor "oscargut" contains only half of the solution.
Below is a complete solution.

sin(2x) = -1 There are two solutions of this equation relevant to our problem: 2x = is the first, and 2x = is the second. From the first solution you get x = . From the second solution you get x = = . Answer: x = and/or x = .

Plots y = sin(2x) and y = -1.

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