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6 September, 00:48

The tThe term 10x3y2 is a term in which binomial expansion?

(x + y) 5

(x + y) 6

(5x + 2y) 6

(x + y) 8

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  1. 6 September, 01:58
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    (x + y) ^5.

    Step-by-step explanation:

    The (r+1) th term of (x + y) ^n = nCr x^n-r y^r

    Compare this with 10x^3 y^2 we get

    nCr = 10, n-r = 3 and r = 2 giving n = 3+2 = 5

    5C2 = 10.

    So the answer is (x + y) ^5.
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