## Venomblast Group Title i need one last help one year ago one year ago

1. koda10 Group Title

|dw:1355995034204:dw|

2. Venomblast Group Title

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

3. hartnn Group Title

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

4. Venomblast Group Title

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

5. waterineyes Group Title

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

6. waterineyes Group Title

7. Venomblast Group Title

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

8. hartnn Group Title

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

9. Venomblast Group Title

what? i am, lost

10. Venomblast Group Title

i got -60

11. waterineyes Group Title

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

12. Venomblast Group Title

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

13. waterineyes Group Title

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

14. Venomblast Group Title

then you add 360. you get back to 300.

15. hartnn Group Title

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

16. waterineyes Group Title

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

17. Venomblast Group Title

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

18. waterineyes Group Title

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

19. waterineyes Group Title

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

20. waterineyes Group Title

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..

21. Venomblast Group Title

i domt see anything o.o

22. waterineyes Group Title

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

23. waterineyes Group Title

Again refresh your page so see here LATEX..

24. Venomblast Group Title

i did

25. Venomblast Group Title

man i onmly got 3 degrees

26. waterineyes Group Title

What you got as your solutions tell me?

27. Venomblast Group Title

0, 180 and 300

28. waterineyes Group Title

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

29. waterineyes Group Title

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

30. waterineyes Group Title

Are you not getting 240 as one of its solutions?

31. waterineyes Group Title

Not interested in replying ?? @Venomblast

32. Venomblast Group Title

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

33. Venomblast Group Title

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

34. waterineyes Group Title

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

35. Venomblast Group Title

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

36. waterineyes Group Title

Yes I am telling you the answer..

37. Venomblast Group Title

then what is it?

38. waterineyes Group Title

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

39. Venomblast Group Title

just tell me. i have to hand this in.

40. waterineyes Group Title

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..

41. Venomblast Group Title

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

42. waterineyes Group Title

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

43. waterineyes Group Title

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

44. waterineyes Group Title

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..

45. Venomblast Group Title

i dont understand it

46. Venomblast Group Title

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

47. waterineyes Group Title

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

48. waterineyes Group Title

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

49. Venomblast Group Title

i never seen this formula in my life.

50. waterineyes Group Title

But you will see surely and soon..

51. Venomblast Group Title

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

52. waterineyes Group Title

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

53. waterineyes Group Title

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

54. Venomblast Group Title

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

55. waterineyes Group Title

56. Venomblast Group Title

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

57. Venomblast Group Title

this website need to be better

58. hba Group Title

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

59. waterineyes Group Title

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

60. Venomblast Group Title

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

61. waterineyes Group Title

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

62. Venomblast Group Title

bnut that will jsut get me 300no?

63. hba Group Title

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

64. waterineyes Group Title

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

65. waterineyes Group Title

Yeah.. But I am still trying..

66. waterineyes Group Title

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

67. hba Group Title

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

68. Venomblast Group Title

2pi/3

69. waterineyes Group Title

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

70. Venomblast Group Title

-2pi/3

71. waterineyes Group Title

$x = \pi + \frac{\pi}{3} = ??$

72. hba Group Title

4/3 pi *

73. waterineyes Group Title

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

74. hba Group Title

4*180/3=

75. Venomblast Group Title

i need the degree. not the redian.

76. Venomblast Group Title

nvm i will just ask someon eelse.

77. hba Group Title

240 degree.

78. waterineyes Group Title

I am just saying convert that radian into degrees..

79. Venomblast Group Title

that maa work. why cant u justuse the circle.

80. waterineyes Group Title

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

81. hba Group Title

@Venomblast what ?

82. hba Group Title

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

83. Venomblast Group Title

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

84. waterineyes Group Title

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

85. Venomblast Group Title

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

86. hba Group Title

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

87. Venomblast Group Title

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

88. Venomblast Group Title

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

89. waterineyes Group Title

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

90. waterineyes Group Title

Tell me sine is negative in which quadrants??

91. hba Group Title

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

92. hba Group Title

|dw:1356008695751:dw|

93. Aryang Group Title

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94. amistre64 Group Title

wow, that was almost too painful to read ;)

95. hba Group Title

@amistre64 lol :P