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If three consecutive coefficients in the...

If three consecutive coefficients in the expansion of `(1+x)^(n)` are in the ratio 1:3:5, then the value of n is:

A

6

B

7

C

8

D

9

Text Solution

Verified by Experts

The correct Answer is:
B
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MODERN PUBLICATION-BINOMIAL THEOREM-MCQ.s (LEVEL-II)
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  2. If the 6th term in the expansion of ((1)/(x^(8//3))+x^(2)log(10)x)^(8)...

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  3. If three consecutive coefficients in the expansion of (1+x)^(n) are in...

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  4. For integer ngt1, the digit at unit's place in the number sum(r=0)^(10...

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  5. The digit at unit's place in 2^(9^(100)) is:

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  6. If in the expansion of (1+x)^(m)(1-x)^(n) the coefficients of x and x^...

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  7. The coefficient of x^(53) in the expansion of: sum(m=0)^(100)""^(100...

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  8. The coefficient of x^(4) in the expansion of : (1+x+x^(2)+x^(3))^(n)...

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  9. In the expansion of (1+x+x^(3)+x^(4))^(4), the coefficient of x^(4) is...

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  10. If the sum of the coefficient in the expansion of (alpha^(2)x^(2)-2alp...

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  11. If (3sqrt(3)+5)^(2n+1)=p+f, where p is an integer and f is a proper fr...

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  12. The larger of 99^(50)+100^(50) and 101^(50) is:

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  13. Find the value of x in the expansion of [x+x^(log(10)x)]^(5), if the t...

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  14. Value of 2C(0)+(2^(2))/(2)C(1)+(2^(3))/(3)C(2)+ . . .+(2^(11))/(11)C(1...

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  15. Sum to (n+1) terms of the series: (C(0))/(2)-(C(1))/(3)+(C(2))/(4)-(C(...

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  16. If n is an even integer, then: C(0)^(2)-C(1)^(2)+C(2)^(2)-C(3)^(2)+ ...

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  17. 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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  18. If m,n,r are positive integers such that rltm,n, then: ""^(m)C(r)+""...

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  19. If in the expansion of (2a-(a^(2))/(4))^(9), the sum of middle terms i...

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  20. The term independent of x in the expansion of (1+x)^(n)(1-(1)/(x))^(n)...

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