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If the coefficient of x^(7) in [ax^(2)+(...

If the coefficient of `x^(7)` in `[ax^(2)+((1)/(bx))]^(11)` equals the coefficient of `x^(-7)` in `[ax-((1)/(bx^(2)))]^(11)`, then a and b satisfy the relation:

A

0

B

1

C

-1

D

2

Text Solution

Verified by Experts

The correct Answer is:
B
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HIMALAYA PUBLICATION-BINOMIAL THEOREM-QUESTION BANK
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  10. The sum of the coefficients in the expansion of (a x^(2)-2 x+1)^(35) i...

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  11. If (1+2 x+x^(2))^(n)=sum(r=0)^(2 n) a(r) x^(r), then a(r) =

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  12. If (1+x-2 x^(2))^(6)=1+a(1) x+a(z) x^(2)+l .. .+a(12) x^(12) then a(2...

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  13. If C(n) is the coefficient of x^(n) in the expansion of (1+x)^(n) ...

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  14. If (1+x)^(n)=C(0)+C(1)x+C(2)x^(2)+ . . .+C(n)x^(n), then the value of ...

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