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(x+y)ⁿ expansion: sum of binomial coefficients times powers. Used in probability, algebra, calculus.
Водич корак по корак
- 1Input terms, exponent
- 2Generate binomial expansion
- 3Calculate specific coefficients using Pascal's triangle
Worked Examples
Инпут
(x+2)³
Резултат
x³ + 6x² + 12x + 8
Coefficients 1,3,3,1 from Pascal's triangle
Common Mistakes to Avoid
- ✕Forgetting alternating signs for (x-y)ⁿ
- ✕Miscalculating binomial coefficients
Frequently Asked Questions
Why is binomial theorem useful?
Approximations, probability distributions (binomial distribution), polynomial algebra.
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