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Jinsi ya kukokotoa Pascal's Triangle

Pascal's Triangle ni nini?

Pascal's Triangle is a triangular array where each number is the sum of the two numbers directly above it. It encodes binomial coefficients, combinatorics, and the coefficients of binomial expansions. Named after Blaise Pascal (1623–1662) though known much earlier.

Mwongozo wa Hatua kwa Hatua

  1. 1Row 0: 1 | Row 1: 1, 1 | Row 2: 1, 2, 1 | Row 3: 1, 3, 3, 1
  2. 2Entry C(n,k) = entry in row n, position k = n! / (k!(n−k)!)
  3. 3Binomial expansion: (a+b)^n coefficients are row n of the triangle
  4. 4Sum of row n = 2^n; diagonal sums give Fibonacci numbers

Mifano Iliyotatuliwa

Ingizo
(x+y)^4
Matokeo
1x⁴ + 4x³y + 6x²y² + 4xy³ + 1y⁴
Coefficients: Row 4 = 1,4,6,4,1
Ingizo
Combinations C(5,2)
Matokeo
10
Row 5, position 2 of Pascal's Triangle

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