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Old 10-18-2006, 08:07 PM   #1
VCDrivesAPorscheToWork
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Default OT: Random Math Question

im wondering if anyone knows this. I've come across a potential factor of input function I would like to use in my paper, but I forgot my freshman calculus.



anyone know how to integrate


(1 + cosx)^(1/2)

and ( 1 - cosx)^(1/2)


any help will be appreciated.
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Old 10-18-2006, 08:11 PM   #2
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my high school precal is worthless for this stuff...

Im taking calculas senior year (next yr) maybe I can get back to you then?

Usually, the trick is to just cancel everything out OR claim it is undefined. lol
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Old 10-18-2006, 08:11 PM   #3
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You need a special formulae for that, they have tables or something for them. Those are improper integrals I believe.
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Old 10-18-2006, 08:19 PM   #4
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Quote:
Originally Posted by VCDrivesAPorscheToWork
im wondering if anyone knows this. I've come across a potential factor of input function I would like to use in my paper, but I forgot my freshman calculus.



anyone know how to integrate


(1 + cosx)^(1/2)

and ( 1 - cosx)^(1/2)


any help will be appreciated.


That formula turns into (1/2)(U)^(-1/2) U=1+cos
then the 1+cos turns into -sin.
(1/2)(-sin)^(-1/2) easy!
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Old 10-18-2006, 08:27 PM   #5
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Quote:
Originally Posted by VCDrivesAPorscheToWork
im wondering if anyone knows this. I've come across a potential factor of input function I would like to use in my paper, but I forgot my freshman calculus.



anyone know how to integrate


(1 + cosx)^(1/2)

and ( 1 - cosx)^(1/2)


any help will be appreciated.

Why do u need to learn this sh*it?
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Old 10-18-2006, 08:28 PM   #6
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Quote:
Originally Posted by Wadeisabeast
Why do u need to learn this sh*it?
Because Math is a very important subject for many different majors?
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Old 10-18-2006, 08:29 PM   #7
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what is integrating?
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Old 10-18-2006, 08:35 PM   #8
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Opposite of differentiating.
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Old 10-18-2006, 09:03 PM   #9
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Default re:

nvm I figured it out. i had to use the tan(x/2) substitution.
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Old 10-18-2006, 09:12 PM   #10
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Quote:
Originally Posted by Jerm
Opposite of differentiating.
the inverse of differentiating ;)
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Old 10-18-2006, 09:22 PM   #11
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whatever...

inverse

adj [in vrs, n vrs]
1. opposite or reversing: opposite to or reversing something
2. mathematics involving oppositely affected variables: involving two variables that are in a mathematical relationship where, when one increases, the other decreases and vice versa

Encarta World English Dictionary & (P) 1998-2004 Microsoft Corporation. All rights reserved.
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Old 10-18-2006, 09:25 PM   #12
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yeah I know, I'm just being an ass. I had a prof once that got all upset about people using opposite and inverse interchangeably, so I just thought of him when you said opposite
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Old 10-18-2006, 09:40 PM   #13
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Basketball and math go together like tacos and chinese people.
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Old 10-18-2006, 09:50 PM   #14
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Stupid salesman, nobody expects you to know a thing about math. You got a $400,000 home and a Cadillac with $40,000 a year. Simple arithmetic would have helped you evade such horrible lies.
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Old 10-18-2006, 09:53 PM   #15
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Quote:
Originally Posted by Jerm
Stupid salesman, nobody expects you to know a thing about math. You got a $400,000 home and a Cadillac with $40,000 a year. Simple arithmetic would have helped you evade such horrible lies.

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