Question

write any formula of expansion formulae​

Answer 1

Step-by-step explanation:

Terms of Binomial Expansion

(x + y)n + (x−y)n = 2[C0 xn + C2 xn-1 y2 + C4 xn-4 y4 + …] (x + y)n – (x−y)n = 2[C1 xn-1 y + C3 xn-3 y3 + C5 xn-5 y5 + …] ... xr = [C0 + C1 x + C2 x2 + … Cn xn] (1+x)n + (1 − x)n = 2[C0 + C2 x2+C4 x4 + …]

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Answer 2

Answer:

Terms of Binomial Expansion

(x + y)n + (x−y)n = 2[C0 xn + C2 xn-1 y2 + C4 xn-4 y4 + …]

(x + y)n – (x−y)n = 2[C1 xn-1 y + C3 xn-3 y3 + C5 xn-5 y5 + …]

Step-by-step explanation:

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