Math Problem Statement
можешь мне объяснить откуда взялись 1 и x^(n+1) в последней сумме?
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Binomial Expansion
Formulas
(1 + x)^n = ∑ C(n, k) * x^k
(1 + x)^(n+1) = (1 + x) * ∑ C(n, k) * x^k
Theorems
Binomial Theorem
Suitable Grade Level
Grades 10-12