Friday, January 16, 2015

Practicing Entrance Exams

Binomial Theorem

In elementary algebra, the binomial theorem describes the algebraic expansion of powers of a binomial, hence it is referred to as binomial expansion. According to the theorem, it is possible to expand the power (x + y)n into a sum involving terms of the form axbyc, where the exponents b and c are non negative integers with b + c = n, and the coefficient a of each term is a specific positive integer depending on n and b. When an exponent is zero, the corresponding power is usually omitted from the term.