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#1 2013-01-04 12:33:37

cooljackiec
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binomial thereom

help:


I see you have graph paper.
You must be plotting something
lol

#2 2013-01-04 12:41:14

bobbym
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Re: binomial thereom

Hi;

By the binomial theorem or Pascals triangle





Now just substitute for a and b


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#3 2013-01-04 12:56:42

cooljackiec
Full Member

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Re: binomial thereom

thanks


I see you have graph paper.
You must be plotting something
lol

#4 2013-01-04 13:05:15

cooljackiec
Full Member

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Re: binomial thereom

what is the coefiicencient of

in


I see you have graph paper.
You must be plotting something
lol

#5 2013-01-04 13:19:42

bobbym
Administrator

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Re: binomial thereom

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#6 2013-01-04 20:33:37

bob bundy
Moderator

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Re: binomial thereom

hi cooljackiec



The term with c^3 will be



The term in (a+2b)^3 with ab^2 will be



So the coefficient you want will be:



Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

#7 2013-01-07 17:45:00

noelevans
Full Member

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Re: binomial thereom

Hey cooljackiec!

You might google "multinomial coefficients" and check out some of the sites to see how to easily
obtain the coefficient of the ab^2c^3 term in (a+2b+3c)^6.  I'm guessing that that is where bobbym
got his answer.


Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional).
LaTex is like painting on many strips of paper and then stacking them to see what picture they make.

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