SOLUTION: Find all solutions to the equation. 2sinx+sin2x=0 Write your answer in radians in terms of pi, and use the "or" button as necessary.

Algebra ->  Trigonometry-basics -> SOLUTION: Find all solutions to the equation. 2sinx+sin2x=0 Write your answer in radians in terms of pi, and use the "or" button as necessary.       Log On


   



Question 1027188: Find all solutions to the equation.
2sinx+sin2x=0
Write your answer in radians in terms of pi, and use the "or" button as necessary.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!

2sinx+sin2x=0
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2sin(x) + 2sin(x)*cos(x)=0
sin(x) + sin(x)*cos(x)=0
sin(x)*(cos(x) + 1) = 0
sin(x) = 0
x = 0 + n*pi
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cos(x) + 1 = 0
x = pi + n*2pi
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n = any integer in both solutions