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Find a,b,and n in the expansion of (a+b)...

Find a,b,and n in the expansion of `(a+b)^n` if the first three terms of the expansion are 729. 7290 and 30375, respectively.

Text Solution

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The correct Answer is:
a =3: b=5: n=6
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Find a,b and n in the exapnsion of (a+b)^(n) if the first three terms of the expansion are 729 , 7290 and 30375 , respectively .

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Knowledge Check

  • In the expansion of (a+b)^(n) , the sum of the coefficient of x^(5) is ………..

    A
    1594
    B
    792
    C
    924
    D
    2924
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