Please help!

Solve sin2x + 2sinx = 0 for 0 ≤ x

Question

Please help!

Solve sin2x + 2sinx = 0 for 0 ≤ x < 2 π .

0

{0, π/2 }

{0, π}

{π/2,3π/2 }

solomonzelman · Answer

TO forst solve for sinx, you can say

Let sin(x)=a

So you would have a quadratic,

a^2+2a=0

ttop0816 · Answer

yes

ttop0816 · Answer

@shrutipande9  would it be {0, π}??

shrutipande9 · Answer

srry i m bad at math..:(
@hartnn can help u

ttop0816 · Answer

@shrutipande9  oh okay ): 
@hartnn  am i correct??

ttop0816 · Answer

i kind of need to know the answer right away! /.\

ttop0816 · Answer

DDD:

solomonzelman · Answer

@ttop0816  dkyu blocked me, but I had something to tell you. I am out of here, just saying be careful when asking for answers to math problems, this website is not openyahoo.com or anything like that, it's study.

I gave you a tip, please show me what you've been doing to get your guess. Well, if you would just be asking after the very first tip, is B the answer or is C the answer, I will assume you are just guessing!