SOLUTION: Find all solutions to the equation. 7 sin^2 x - 14 sin x + 2 = -5

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find all solutions to the equation. 7 sin^2 x - 14 sin x + 2 = -5      Log On


   

Question 1104117: Find all solutions to the equation.
7 sin^2 x - 14 sin x + 2 = -5
Answer by greenestamps(13198) About Me  (Show Source):
You can put this solution on YOUR website!


7%28sinx%29%5E2-14sinx%2B2+=+-5
7%28sinx%29%5E2-14sinx%2B7+=+0
%28sinx%29%5E2-2sinx%2B1+=+0
%28sinx-1%29%5E2+=+0
sinx-1+=+0
sinx+=+1
x = pi/2 plus any multiple of 2pi.