Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

You are not logged in.

## #1 2013-01-03 13:33:37

cooljackiec
Member
Registered: 2012-12-13
Posts: 185

### binomial thereom

help:

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

Offline

## #2 2013-01-03 13:41:14

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### 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.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #3 2013-01-03 13:56:42

cooljackiec
Member
Registered: 2012-12-13
Posts: 185

### Re: binomial thereom

thanks

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

Offline

## #4 2013-01-03 14:05:15

cooljackiec
Member
Registered: 2012-12-13
Posts: 185

### Re: binomial thereom

what is the coefiicencient of

in

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

Offline

## #5 2013-01-03 14:19:42

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: binomial thereom

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #6 2013-01-03 21:33:37

bob bundy
Administrator
Registered: 2010-06-20
Posts: 8,012

### 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

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

Offline

## #7 2013-01-06 18:45:00

noelevans
Member
Registered: 2012-07-20
Posts: 236

### 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.

Offline

## Board footer

Powered by FluxBB