SOLUTION: I need help, I don't understand how to do this.. Find all solutions to the equation. 7 sin2x - 14 sin x + 2 = -5

SOLUTION: I need help, I don't understand how to do this.. Find all solutions to the equation. 7 sin2x - 14 sin x + 2 = -5

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Question 1005892: I need help, I don't understand how to do this..
Find all solutions to the equation.
7 sin2x - 14 sin x + 2 = -5
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
It's a quadratic equation in disguise.
Let , then,

Now solve the quadratic in and back substitute to get the solution in .
Repost if you get stuck.

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