25-04-2020
Mathematics

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Find the coefficient of the x7y2term in the binomial expansion of (x+y)^9

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profarouk profarouk

26-04-2020

Answer:

36

Step-by-step explanation:

first, see the formula in the attached picture.

now, by applying that formula we get :

the coefficient of the x7y2 is :

9C7 = 36 (you can either use a calculator or just the algebraic formula)

Ver imagen profarouk

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