Question

Find all solutions to the equation.

sin2x + sin x = 0

Answer 1

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

Answer 2

could you work it out please thank you

Answer 3

@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.

Answer 4

im stuck on what to do thats why im asking

Answer 5

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

Answer 6

then y^2 = y and y = sqrtY ?

Answer 7

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

Answer 8

What good*

Answer 9

nothing

Answer 10

@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)