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If 5^(th),6^(th) and 7^(th) terms in the...

If `5^(th),6^(th) and 7^(th)` terms in the expansion of `(1+y)^(n)` are in A.P . Then the value of n is `………..`

A

7,11

B

7,14

C

8,16

D

None of these

Text Solution

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The correct Answer is:
B
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KUMAR PRAKASHAN-BINOMIAL THEOREM -TEXTBOOK BASED MCQS
  1. If (1+2x-3x^(2))^(5)=1+a(1)x+a(2)x^(2)+….+a(10)x^(10) then the value o...

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  2. (2+sqrt(3))^(4)+(2-sqrt(3))^(4) = x+ ysqrt(3) then y = ………..

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  3. In the expansion of (1+x)^(n) if the coefficients of the terms 5^(th) ...

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  4. The constant term in the expansion of (x-1/(3x^(2)))^(9) is the ……… te...

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  5. In the expansion of (1+x)^(21)+(1+x)^(22) +…….+(1+x)^(30) , the coeffi...

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  6. In the expansion of (x+a)^(100)+(x-a)^(100) , there are ………… terms

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  7. The middle term in the expansion (x^(2)-1/(2x))^(20) is r than (r+3)^(...

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  8. In the expansion of (x^(4) -1/(x^(3)))^(15) if in the r^(th) temr , t...

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  9. If 5^(th),6^(th) and 7^(th) terms in the expansion of (1+y)^(n) are in...

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  10. If in the expansion of (a+b)^(n) , (T(2))/(T(3)) is equal to (T(3))/(...

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  11. The constant term in the expansion of (1/2x^(1/3)+x^(-1/5))^(8) is ……...

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  12. The coeficient of (x^(7)y^(3)) in the expansion of (x-y)^(10)- th...

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  13. [(sqrt(3)+1)^(6)]= ……… Where "[ ]" is a greatest integar function .

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  14. 10 C(1)+10 C(3) +10 C(5) +10 C(7) +10 C(9) = …….

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  15. (1+x-2x^(2))^(6)=1+a(1),x+a(2)x^(2)+….+a(12)^(12) then the value of a...

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  16. In the expansion of (1+x^(2))^(5)(1+x)^(4) , the coefficient of x^(5) ...

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  17. In the expansion of (a+b)^(n) , the sum of the coefficient of x^(5) i...

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  18. The coefficient of x in expansion of (x^(2)+a/x)^(5) is ……….

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  19. The number of the terms in the expansion (sqrt(3)+root(5)5)^(256) whi...

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  20. If the 3^(rd) term in expansion (x+x^(log)10^(x))^(5) " is " 10^(6) th...

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