Pascal's Triangle کا حساب کیسے لگائیں
Pascal's Triangle کیا ہے؟
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.
مرحلہ وار گائیڈ
- 1Row 0: 1 | Row 1: 1, 1 | Row 2: 1, 2, 1 | Row 3: 1, 3, 3, 1
- 2Entry C(n,k) = entry in row n, position k = n! / (k!(n−k)!)
- 3Binomial expansion: (a+b)^n coefficients are row n of the triangle
- 4Sum of row n = 2^n; diagonal sums give Fibonacci numbers
حل شدہ مثالیں
ان پٹ
(x+y)^4
نتیجہ
1x⁴ + 4x³y + 6x²y² + 4xy³ + 1y⁴
Coefficients: Row 4 = 1,4,6,4,1
ان پٹ
Combinations C(5,2)
نتیجہ
10
Row 5, position 2 of Pascal's Triangle
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