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The Binomial Theorem
Here is a truly basic result from combinatorics kindergarten. Theorem: Binomial TheoremLet x and y be real numbers with x, y and x+y non-zero.
The Binomial Theorem
Here is a truly basic result from combinatorics kindergarten.
Example
There are times when we are interested not in the full expansion of a power of a binomial, but just the coefficient on one of the terms. The gives that the coefficient of \(x^5y^8\) in \((2x-3y)^{13}\) is \(\binom{13}{5}2^{5}(-3)^8\).
ಈಗ ನೀವು ಯಾವುದೇ ಕ್ಯಾಲುಕೇಂಟ್ ಇದನ್ನು ಸಚೇತಗೊಳಿಸುವುದಿಲ್ಲ, ಆದರೆ ಅದರ ತುಂಡುಗಳು ಸಹಕಾರಿಯಾಗುತ್ತವೆ. ಕೆಳಗೆ ಯಾವುದನ್ನು ಪ್ರಯತ್ನಿಸಿ ಅಥವಾ ನಿಮ್ಮದನ್ನು ಟೈಪಿಸಿ.
ರೂಢಿ (1)
Try each one on paper first. Reveal the answer to check; verified ones can be opened in the solver for every step.
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Explain how you can use to give yet another proof of the identity \[\begin{aligned}\end{aligned}\].
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ಮೇಲೆ ಗುರುತು ಹಾಕು ಪ್ರವೇಶ (ಲಾಗಿನ್)ಇಲ್ಲಿ ಬಳಸಲಾದ ಸಂಕೇತಗಳು
ಈ ವಚನದಲ್ಲಿ ಬಳಸಲಾಗಿರುವ ಗ್ರೀಕ್ ಪದವು, ಚಿತ್ರ ಮತ್ತು ಚಿತ್ರಗಳನ್ನು ನೀವು ಸುಲಭವಾಗಿ ಅರ್ಥಮಾಡಿಕೊಳ್ಳಲು ಸಹಾಯ ಮಾಡುತ್ತದೆ.
ಜನರು ಕೇಳುವುದು
Permutation or combination?
Ask whether order matters. A lock code is a permutation (order matters); a hand of cards is a combination (it does not).
What is a graph in this sense?
Dots (vertices) joined by lines (edges), not a plot. Road maps, social networks and molecules are graphs; questions like "is there a route" and "how few colours" are graph theory.
ಈ ಪುಟದ ಭಾಗಗಳು ಹೊಂದಿಕೆಯಾಗಿ ಮಾಡಲ್ಪಡುತ್ತವೆ Keller & Trotter, Applied Combinatorics (CC BY-SA 4.0). ಇಲ್ಲಿ ಕೊರೆದು ಪುನಃ ಮರುಕಳಿಸಲಾಗಿದೆ; ದೋಷಗಳು ನಮ್ಮದಾಗಿವೆ.
ಇನ್ನಷ್ಟು Combinatorics & Graph Theory
The counting principlesPigeonhole principle and inclusion, exclusionBinomial coefficients and Pascal's triangleRecurrences and generating functionsGraphs: vertices, edges, degreesPaths, cycles, trees, Euler and HamiltonColouring and planar graphs