Find all solutions to the equation.

sin2x + sin x = 0

Question

Find all solutions to the equation.

sin2x + sin x = 0

tyteen4a03 · Answer

Let sin(x) be y, solve the quadratic equation in terms of y then find x.

anonymous · Answer

could you work it out please thank you

tyteen4a03 · Answer

@lebronjames We're not here to do your homework. You'll have to figure it out by yourself. You can however ask questions when you're stuck on a particular step.

anonymous · Answer

im stuck on what to do thats why im asking

tyteen4a03 · Answer

@lebronjames Let sin(x) be y, then the equation sin2x + sin x = 0 would become y^2 + y = 0.

anonymous · Answer

then y^2 = y and y = sqrtY ?

anonymous · Answer

@lebronjames what could would it to do have y=sqrt(y)?

anonymous · Answer

What good*

anonymous · Answer

nothing

tyteen4a03 · Answer

@lebronjames Use the quadratic equation to get the solutions to this problem.

(If you have no idea what they are, you may need to retake Algebra II)