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Binomial Theorem of Class 11

Binomial Theorem for a +ve integral index n

If n is a positive integer and x, y are real or imaginary numbers, then

(x + y)n = nCoxnyo + nC1xn-1y1 + nC2xn-2y2 + …….+ nCnyn

where nCo, nC1, …..nCn are called binomial coefficients

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