i need one last help

- Venomblast

i need one last help

- Stacey Warren - Expert brainly.com

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- jamiebookeater

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- anonymous

|dw:1355995034204:dw|

- Venomblast

2sin(theta)^2+square root of 3 times sine (theta)=0

- hartnn

\(2\sin^2 x+\sqrt{3sin x}=0\) right ?>

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## More answers

- Venomblast

for some reason tis site is not letting use the equation button

- anonymous

\[2 \sin^2(\theta) + \sqrt{3 \cdot \sin(\theta)} = 0\]

- anonymous

Reload your page.

- Venomblast

\[2sine(\theta)^{2}+\sqrt{3}sine(\theta)=0\] i got for theta 0, 180, and 300

- hartnn

sin x(2sin x+sqrt 3)=0 sin x = 0 ---- > x=0,180,360 sin x =-sqrt 3/2 ----> x=.... ?

- Venomblast

what? i am, lost

- Venomblast

i got -60

- anonymous

\[\sin x(2\sin x+\sqrt{ 3})=0\] Here just put the factors equal to 0 separately..

- Venomblast

0 and 360 is the same exaxt degree. there suppose to be 4 solutions

- anonymous

\[\sin(-60) = - \frac{\sqrt{3}}{2}\] Yes you are right..

- Venomblast

then you add 360. you get back to 300.

- hartnn

yes, u get 2 solutions for sin x = -sqrt 3/2

- anonymous

Generally you can find them using : \[x = n \pi + (-1)^n y\]

- Venomblast

whar are the 2 solution? i only can get 3. how u get the 4th one?"

- anonymous

See here : \[\sin(x) = \sin(-\frac{\pi}{3})\]

- anonymous

So : According to that general form : \[x = n \pi + (-1)^n (-\frac{\pi}{3})\]

- anonymous

Now, here n is an integer, you can put n = 1, 2,3 etc or you can put -1, -2 -3 etc.. To find the required solution..

- Venomblast

i domt see anything o.o

- anonymous

For example : Put n = 0 here : \[x = - \frac{\pi}{3}\]

- anonymous

Again refresh your page so see here LATEX..

- Venomblast

i did

- Venomblast

man i onmly got 3 degrees

- anonymous

What you got as your solutions tell me?

- Venomblast

0, 180 and 300

- anonymous

Wait, put n= 2 there and tell me what are you getting??

- anonymous

Is there any range given to you in which you are to find these solutions?? Like 0 to 360..

- anonymous

Are you not getting 240 as one of its solutions?

- anonymous

Not interested in replying ?? @Venomblast

- Venomblast

that what im looking for. i got 0 which is the same as 360 degrees and 180

- Venomblast

openstudy didnt want to put up my post for like 8 min

- anonymous

Is there any range in which you are to find the solutions or not??

- Venomblast

can you tell me the solution. im so sleepy. i dont know the answer and i really want ot know but it 5:06 am

- anonymous

Yes I am telling you the answer..

- Venomblast

then what is it?

- anonymous

So, when you will wake up and come on openstudy next time, answer I will tell you then definitely.. So sleep well...

- Venomblast

just tell me. i have to hand this in.

- anonymous

I do not have power to tell you the answer only.. I have given you the formula above just put up the values of n there you will surely have your answer..

- Venomblast

im not use to thqt formula. you learn it differently from me

- anonymous

Sorry, if you want help then I can help you.. So, try to understand what I am saying to you..

- anonymous

I agree I have studied it different from you... But what is the problem you are facing in using the formula, tell me..

- anonymous

See, if you do it now on your own, then next time you need not to ask it from anybody.. So, keep it up and solve it, I know you can do.. When problem you will face, then let me know..

- Venomblast

i dont understand it

- Venomblast

i did do it on my own. dude. i got 3 answes out of 4.i havnt slept yet and my next class is at 8 am

- anonymous

I am just saying you to just put n = 2 here : \[x = n \pi + (-1)^n (- \frac{\pi}{3})\]

- anonymous

See, if your next class is at 8 am, then it is not my fault.. I can't do anything in this...

- Venomblast

i never seen this formula in my life.

- anonymous

But you will see surely and soon..

- Venomblast

how do u know. i leanr it differenltly. i cutally have to draw the circle

- anonymous

See, I tell you how you got 300 there : Put n= 2 here : \[x = (2) \pi + (-1)^2 (-\frac{\pi}{3})\] \[x = 2\pi - \frac{\pi}{3} \implies \color{red}{x = \frac{5 \pi}{3} = 300}\]

- anonymous

Now, simply put n = 1 in the formula to get the required solution..

- Venomblast

woa.. but i told you already. i already got 300 as my asnwer|dw:1355998903609:dw|

- anonymous

Nice answer.. Well Done..

- Venomblast

woa.. but i told you already. i already got 300 as my asnwer

- Venomblast

this website need to be better

- hba

@waterineyes Good for nothing. Ha Ha Ha...

- anonymous

I just showed you, mathematically How you got 300..

- Venomblast

ok. but how you get the rest. i just need 1 more degree

- anonymous

Dear, put n = 1 there in the formula.. Why aren't you plugging n = 1 there ??

- Venomblast

bnut that will jsut get me 300no?

- hba

@waterineyes You are not helping Ha Ha Ha,...

- anonymous

No, that will not give you 300.. Try that once.

- anonymous

Yeah.. But I am still trying..

- anonymous

He has done everything, but he does not want to put n = 1 there..

- hba

\[x = (2) \pi + (-1)^2 (-\frac{\pi}{3})\] put n=1 @Venomblast

- Venomblast

2pi/3

- anonymous

\[x = (1) \pi + (-1)^1 (-\frac{\pi}{3})\]

- Venomblast

-2pi/3

- anonymous

\[x = \pi + \frac{\pi}{3} = ??\]

- hba

4/3 pi *

- anonymous

Nice @hba \[\frac{4 \pi}{3} = ??\]

- hba

4*180/3=

- Venomblast

i need the degree. not the redian.

- Venomblast

nvm i will just ask someon eelse.

- hba

240 degree.

- anonymous

I am just saying convert that radian into degrees..

- Venomblast

that maa work. why cant u justuse the circle.

- anonymous

I think, @hba is more helpful than me..

- hba

@Venomblast what ?

- hba

@waterineyes I am useless lol :D Not helpful :P

- Venomblast

how u got 240. did you add 180 or something? becuase it has to be in quad 3 right. but how?

- anonymous

See : \[\frac{\pi}{3} = 60\] Right ??

- Venomblast

i had -60. so i added 360. and i got 300 degrees. so now how did you get 240?

- hba

It is in 3rd quad. |dw:1356000009002:dw|

- Venomblast

sorry i dont use radians to figure this problem. i told u . i use the actualt cricle

- Venomblast

|dw:1356000136227:dw| but how you got 240?

- anonymous

simple buddy.. 300 - 60 = 240. Ha ha ha ha @hba

- anonymous

Tell me sine is negative in which quadrants??

- hba

@waterineyes Let me summarize trig Ha Ha Ha...

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- hba

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- anonymous

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- amistre64

wow, that was almost too painful to read ;)

- hba

@amistre64 lol :P

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