Combinations Permutations ಅನ್ನು ಹೇಗೆ ಲೆಕ್ಕ ಹಾಕುವುದು

Combinations Permutations ಎಂದರೇನು?

Combinations count ways to choose items where order does not matter. Permutations count ways where order does matter. Both use factorials and appear in probability, statistics, and combinatorics.

ಹಂತ-ಹಂತದ ಮಾರ್ಗದರ್ಶಿ

1. 1Permutations (order matters): P(n,r) = n! / (n−r)!
2. 2Combinations (order irrelevant): C(n,r) = n! / (r!(n−r)!)
3. 3Rule of thumb: if you can swap two items and get a different result, use permutations

Worked Examples