Binomial Theorem Proof: (nC0)(mC0) + (nC1)(mC1) + ... + (nCm)(mCm) = (n+m C m)

In summary, the Binomial Theorem Proof is a mathematical proof that shows the relationship between coefficients and exponents in a binomial expansion. It is important because it allows for expansion of binomial expressions to any power and helps us understand the underlying principles. The formula for the proof is (a + b)^n = Σ(nCr)(a^r)(b^(n-r)), and it can only be used for positive integer exponents. Real-world applications include finance, physics, and statistics. Other methods must be used for negative or fractional exponents.
  • #1
lifeonfire
14
0

Homework Statement



To Prove:
(nC0)(mC0) + (nC1)(mC1) + ... + (nCm)(mCm) = (n+m C m)

where nC0 = n choose 0 and so on.

Homework Equations





The Attempt at a Solution


Tried expanding the whole thing using factorials - but didn't work. Any hints would be really welcome!
 
Physics news on Phys.org
  • #2
You should review proof by induction and then try to apply it here.
 
  • #3
Do I do induction on m?? So that would mean , that by assumption ...+(nCm)(mCm) = (n+m C m)...then to prove ...+(nCm+1)(m+1Cm+1) = (n+m+1 C m+1) ...correct?
 
  • #4
Yes, that should work.
 

FAQ: Binomial Theorem Proof: (nC0)(mC0) + (nC1)(mC1) + ... + (nCm)(mCm) = (n+m C m)

What is the Binomial Theorem Proof?

The Binomial Theorem Proof is a mathematical proof that explains the relationship between the coefficients of a binomial expansion and the exponents of the terms in the expansion.

Why is the Binomial Theorem Proof important?

The Binomial Theorem Proof is important because it allows us to expand binomial expressions to any power, making it a useful tool in algebra and calculus. It also helps us understand the underlying principles of the binomial expansion.

What is the formula for the Binomial Theorem Proof?

The formula for the Binomial Theorem Proof is (a + b)^n = Σ(nCr)(a^r)(b^(n-r)), where n is the power, a and b are constants, and nCr is the combination formula.

Can the Binomial Theorem Proof be used for negative or fractional exponents?

No, the Binomial Theorem Proof can only be used for positive integer exponents. For negative or fractional exponents, other methods such as the Taylor series expansion must be used.

What are some real-world applications of the Binomial Theorem Proof?

The Binomial Theorem Proof can be used in various fields such as finance, physics, and statistics. For example, it can be used to calculate compound interest, approximate values in physics equations, and find probabilities in statistics problems.

Similar threads

Replies
1
Views
6K
Replies
2
Views
2K
Replies
1
Views
2K
Replies
3
Views
812
Replies
5
Views
2K
Replies
1
Views
2K
Replies
4
Views
3K
Replies
1
Views
4K
Replies
2
Views
2K
Back
Top