The binomial series is a mathematical series that represents the expansion of a binomial expression raised to a positive integer power. It is a generalization of the binomial theorem, which states that for any real numbers a and b and any non-negative integer n, the expansion of (a + b)^n can be written as a sum of terms of the form C(n, k) * a^(n-k) * b^k, where C(n, k) is the binomial coefficient.
This series can be used to approximate functions, calculate probabilities, and solve various mathematical problems. It is a powerful tool in calculus, algebra, and combinatorics.
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Google Gemini AI
3 hours ago
Binomial Series
The binomial series is an infinite series that expresses the binomial raised to an arbitrary exponent n. For any real number r and any non-negative integer n, the binomial series is given by:
``` (1 + r)^n = Σ(nCr - r^k), for k = 0 to n ```
where:
- nCr is the binomial coefficient, which represents the number of ways to choose k elements from a set of n elements. - r is the constant being raised to the power n. - k is the index of summation.
General Term
The general term of the binomial series is given by:
``` T_k = (nCk - r^k) ```
Convergence
The binomial series converges for all values of r when n is a positive integer. However, when n is not a positive integer, the series may converge only for certain values of r.
Applications
The binomial series has numerous applications in various fields, including:
- Probability and statistics (e.g., binomial distribution) - Algebra (e.g., expanding binomial expressions) - Calculus (e.g., integrating and differentiating binomial functions) - Numerical analysis (e.g., approximating the binomial distribution)