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In the binomial expansion (a-b)^n, nge5 ...

In the binomial expansion `(a-b)^n, nge5` the sum of 5th and 6th terms is zero. Then find `a/b`

A

`(5)/(n-4)`

B

`(6)/(n-5)`

C

`(n-5)/(6)`

D

`(n-4)/(5)`

Text Solution

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The correct Answer is:
d
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ML KHANNA-BINOMIAL THEOREM AND MATHEMATICAL INDUCTION -Problem Set (2) (MULTIPLE CHOICE QUESTIONS)
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  7. If the coefficients of rth, (r+1)t h ,a n d(r+2)t h terms in the expan...

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  8. If in the expansion of (1+x)^n the coefficients of 14th, 15th and 16th...

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  9. If the coefficients of rth, (r + 1)th and (r +2)th terms in the expan...

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  10. If the coefficients of three consecutive terms in the expansion of (1+...

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  11. If the coefficients of second, third and fourth terms in the expansion...

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  16. The greatest coefficient in the expansion of (1+x)^(2n+2) is

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