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01-15-2008, 11:49 AM
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#21 (permalink)
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Join Date: Jan 2005 Location: The South Posts: 19,969
|  Re: Math help
Quote: |
OT but why did kman get temp baned?
| We can't discuss the cause. I only posted that it was a suspension so that people would know. The software does not distinguish between a suspension or a perm ban. | 
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01-15-2008, 06:29 PM
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#22 (permalink)
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Retired. Join Date: Dec 2005 Location: Los Angeles, California Posts: 8,090
| Re: Math help
Quote:
Originally Posted by Chris Chadwick  OT but why did kman get temp baned? | He got banned because he did something bad. Period.
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"The spaces between your fingers were created so that another's could fill them in."
Quote:
Originally Posted by Norcent I need to stop using the internet. | | |
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01-15-2008, 06:31 PM
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#23 (permalink)
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Retired. Join Date: Dec 2005 Location: Los Angeles, California Posts: 8,090
| Re: Math help
Quote:
Originally Posted by Trifid BIDMAS?
I've topped out at a level maths. Could someone help with this one.  cot 2θcosec2θ______
tan² θsec2θ + sec2θ = (cosθcot2θ)^n
and find n. Eek... | TI89 says n=2, long proof to come.
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My computer uses 1.5A-load, .8A-idle, .65A-standby, .05A-turned off on 125V.
"The spaces between your fingers were created so that another's could fill them in."
Quote:
Originally Posted by Norcent I need to stop using the internet. | | |
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01-15-2008, 06:32 PM
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#24 (permalink)
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Join Date: Feb 2007 Posts: 6,378
| Re: Math help
Quote:
Originally Posted by peterhuang913 He got banned because he did something bad. Period. | Thats a given, I was just wondering why.
__________________ I am not here for long I am deploying soon so please don't expect anything long winded. www.moanmyip.com ^Check that out^ | |
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01-15-2008, 06:43 PM
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#25 (permalink)
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Graphic Designer Join Date: Apr 2007 Location: Thessaloniki, Greece Posts: 507
| Re: Math help
Quote:
Originally Posted by Ethereal_Dragon KMAN, are you familiar with PEMDAS? Thats what you use to solve for X....
(this is dumb, but it is a trick to try an remember it.... learned this about 12 or more years ago.....)
Please (Parenthesis)
Excuse (Exponents)
My (Multiplication)
Dear (Division)
Aunt (Addition)
Sally (Subtraction)
| Is it necessary that addition is before subtraction?
I mean in Algebra it is the exact thing.
5 - 3 is 5 + (-3)
We have learned them as : Brackets/ Parenthesis
Exponents
Factorization
Restrictions
denominator elimination
multiplication/ Division
Addition/ Subtraction or Algebric SUM Quote:
Originally Posted by nitestick mssssee2 we actually had someone do that in an exam at my high school! | Just LOL. | |
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01-15-2008, 06:46 PM
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#26 (permalink)
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Retired. Join Date: Dec 2005 Location: Los Angeles, California Posts: 8,090
| Re: Math help
Quote:
Originally Posted by peterhuang913 TI89 says n=2, long proof to come. | Original eqn:
(cot2θ*csc2θ)/(tan²θ*sec2θ+sec2θ)
Factor out sec2θ in denominator:
(cot2θ*csc2θ)/(sec2θ(tan²θ+1))
tan²θ+1=sec²θ:
(cot2θ*csc2θ)/(sec2θ*sec²θ)
csc2θ/sec2θ=1/tan2θ & sec²θ in denominator is cos²θ in numerator:
(cot2θ*cos²θ)/tan2θ
cot2θ/tan2θ=cot²2θ:
cos²θ*cot²2θ=(cosθcot2θ)²
Simple.
__________________
My computer uses 1.5A-load, .8A-idle, .65A-standby, .05A-turned off on 125V.
"The spaces between your fingers were created so that another's could fill them in."
Quote:
Originally Posted by Norcent I need to stop using the internet. |
Last edited by peterhuang913; 01-15-2008 at 06:48 PM.
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01-15-2008, 09:47 PM
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#27 (permalink)
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Join Date: May 2005 Location: Locked in a dungeon, Perth Posts: 8,037
| Re: Math help
Quote: |
Is it necessary that addition is before subtraction?
| you're right multiplication and division, addition and subtraction are interchangeable. they just teach this acronym as a simple way of memorising the order of operations.
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Originally Posted by veedubfreak MTv happened. That and parents cant beat their children for being drooling leeches on society anymore. | | |
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01-15-2008, 10:07 PM
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#28 (permalink)
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Join Date: Jan 2005 Location: The South Posts: 19,969
| Re: Math help
As long as you work from left to right, you can interchange.
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01-22-2008, 08:46 AM
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#29 (permalink)
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010011010110000101111000 Join Date: Dec 2006 Location: Leicester, England Posts: 3,660
| Re: Math help
i was taught BODMAS but there you go.
I dont think im allowed to disscuss why i got banned. It's quite simple, read this thread carefully. | |
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