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Mad
Amarr
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Posted - 2007.04.30 04:32:00 -
[1]
Edited by: Mad on 30/04/2007 04:28:41
Im confused as HELL about this question:
Find exact value for Tan5pi/12 using half angle identity.
I got these formulas of half angel identity, but it just confuses the hell out of me...
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Vilczynski
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Posted - 2007.04.30 04:39:00 -
[2]
Well, the tangent half angle formula is:
tan(x/2) = sin(x) / ( 1 + cos(x) )
in your problem, x/2 = 5pi/12, therfor x = 5pi/6, and you can get exact values of sin(5pi/6) and cos(5pi/6) pretty easily.
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Mad
Amarr
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Posted - 2007.04.30 04:41:00 -
[3]
Edited by: Mad on 30/04/2007 04:38:36
the overall answer i got was 2+√(3) is that stupidly wrong?
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oDDiTy V2
Epic.
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Posted - 2007.04.30 04:50:00 -
[4]
 Originally by: Mad
Edited by: Mad on 30/04/2007 04:38:36
the overall answer i got was 2+√(3) is that stupidly wrong?
Grab a calculator and plug in the original question.
tan(5pi/12) = 3.73205
2+√(3) = 3.73205
Looks like you've got it. 
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Mad
Amarr
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Posted - 2007.04.30 04:55:00 -
[5]
Originally by: oDDiTy V2
Originally by: Mad
Edited by: Mad on 30/04/2007 04:38:36
the overall answer i got was 2+√(3) is that stupidly wrong?
Grab a calculator and plug in the original question.
tan(5pi/12) = 3.73205
2+√(3) = 3.73205
Looks like you've got it.
Trig confruses me :( sadly its because I only do it when I have midterms or in this case finals coming up... I'm tempted to drop the class since I've pretty much just ****** about the entire time ;P I got 3 more chapters to learn by thursday, can probably do it but only have the option to drop until tomarrow.
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Mad
Amarr
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Posted - 2007.04.30 05:29:00 -
[6]
got that now ;D sqrt7 i think
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MrTriggerHappy
Caldari
Interstellar eXodus
R0ADKILL
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Posted - 2007.04.30 11:02:00 -
[7]
Edited by: MrTriggerHappy on 30/04/2007 11:00:22
/me has arrived to help!
Oh wait it was trigonometry...
* puts his feet up and has a cup of tea*
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My Comments in no way reflect my corp or alliance |
Mad
Amarr
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Posted - 2007.04.30 11:34:00 -
[8]
Originally by: MrTriggerHappy
Edited by: MrTriggerHappy on 30/04/2007 11:00:22
/me has arrived to help!
Oh wait it was trigonometry...
* puts his feet up and has a cup of tea*
Im 2 chapters past that question now  taking a break will continue studying later.
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Miss Anthropy
School of Applied Knowledge
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Posted - 2007.04.30 14:07:00 -
[9]
Originally by: MrTriggerHappy
Edited by: MrTriggerHappy on 30/04/2007 11:00:22
/me has arrived to help!
Oh wait it was trigonometry...
* puts his feet up and has a cup of tea*
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MrTriggerHappy
Caldari
Interstellar eXodus
R0ADKILL
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Posted - 2007.05.03 14:25:00 -
[10]
Originally by: Miss Anthropy
Originally by: MrTriggerHappy
Edited by: MrTriggerHappy on 30/04/2007 11:00:22
/me has arrived to help!
Oh wait it was trigonometry...
* puts his feet up and has a cup of tea*
See at least someone seen the funny side of what i was on about 
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My Comments in no way reflect my corp or alliance |
Valen L'eganas
Gallente
Seraphin Technologies
Mercenary Coalition
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Posted - 2007.05.03 14:29:00 -
[11]
Am I the only non-Kwant/Quant NOT able to make out anything about this? 
I don't even know how to put in into a calculator, let alone solve it! 
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