Home
Class 12
MATHS
In the binomial expansion of (a-b)^(n),n...

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

A

`(6)/(n-5)`

B

`(n-5)/(6)`

C

`(n-4)/(5)`

D

`(5)/(n-4)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • BINOMIAL THEOREM

    MODERN PUBLICATION|Exercise LATEST QUESTION FROM AIEEE/JEE EXAMINATIONS|6 Videos
  • BINOMIAL THEOREM

    MODERN PUBLICATION|Exercise RCQ.s Recent Competitive Questions (Questions from Karnataka CET & Comed|6 Videos
  • BINOMIAL THEOREM

    MODERN PUBLICATION|Exercise RCQ.s Recent Competitive Questions (Questions from Karnataka CET & Comed|6 Videos
  • AREA UNDER CURVES

    MODERN PUBLICATION|Exercise Recent Competitive Questions (Question from karnataka CET & COMED)|9 Videos
  • CARTESIAN SYSTEM OF RECTANGULAR CO-ORDINATES AND STRAIGHT LINES

    MODERN PUBLICATION|Exercise Recent Competitive Questions (Questions from Karnataka CET & COMED)|8 Videos

Similar Questions

Explore conceptually related problems

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

Let nge5 and bne0 . In the binomial expansion of (a-b)^(n) , the sum of the 5^(th) and 6^(th) terms is zero. Then a//b equals

In a binomial expansion (1+x)^(n),n is a positive integer, the coefficients of 5th, 6th and 7th terms are in A.P., then the value of n is

In the expansion of (1+x)^(11) , the 5^(th ) term is 24 times the 3^(rd) term, then x =

If the coefficient of rth, (r+1)th and (r+2)th terms in the binomial expansion of (1+y)^(m) are in A.P. then m and r satisfy the equation:

Sum of 25^(th) and 5^(th) elements of an A.P is

The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and 10th terms is 44. Find the first three terms of the AP.

In the expansion of (1+x)^(10) the coefficient of (2 r+1)^(th) term is equal to the coefficient of (4 r+5)^(th) term then r=

If in the expansion (1+x)^(n) the 5^(th ) term is 4 times the 4^(th) term and the 4^(th) term is 6 times the 3^(rd)' term, then n=

MODERN PUBLICATION-BINOMIAL THEOREM-MCQ.s (LEVEL-II)
  1. Find the coefficient of x^(6) y^(3) in the expansion of ( x+ 2y ) ^(...

    Text Solution

    |

  2. If C(r) stands for ""^(n)C(r) and sum(r=1)^(n)(r*C(r))/(C(r-1))=210, t...

    Text Solution

    |

  3. For a positive integer n, let a(n)=1+(1)/(2)+(1)/(3)+(1)/(4)+ . . .+...

    Text Solution

    |

  4. In the binomial expansion of (a-b)^(n),nge5, the sum of the 5th and 6t...

    Text Solution

    |

  5. The value of ((30),(0))((30),(10))+((30),(1))((30),(11))+((30),(2))(...

    Text Solution

    |

  6. For natural number m, n if (1-y)^(m)(1+y)^(n)=1+a(1)y+a(2)y^(2)+ . . ....

    Text Solution

    |

  7. In the binomial expansion of (a-b)^(n),nge5, the sum of 5th and 6th te...

    Text Solution

    |

  8. If a(1),a(2),a(3),a(4) are coefficients of any four consecutive terms ...

    Text Solution

    |

  9. If n is a positive integer and C(k)=""^(n)C(k), then the value of sum(...

    Text Solution

    |

  10. If (1+x)^(n)=1+C(1)x+C(2)x^(2)+ . . .+C(n)x^(n), then: C(1)^(2)-2C(2)^...

    Text Solution

    |

  11. Let n be an odd integer. If sin n theta=sum(r=0)^(n)b(r) sin^(r)theta ...

    Text Solution

    |

  12. The coefficient of x^(50) in the expression: (1+x)^(1000)+2x(1+x)^(9...

    Text Solution

    |

  13. The last term in the binomial expression of (root(3)(2)-(1)/(sqrt(2)))...

    Text Solution

    |

  14. Let n in N. If (1+x)^(n)=a(0)+a(1)x+a(x)x^(2)+ . . . .+a(n) x^(n) and ...

    Text Solution

    |

  15. If the coefficient of rth, (r+1)th and (r+2)th terms in the binomial e...

    Text Solution

    |

  16. If the coefficient of x^(7) in [ax^(2)+((1)/(bx))]^(11) equals the coe...

    Text Solution

    |

  17. If x is so small that x^(3) and higher powers of x may be neglected, t...

    Text Solution

    |

  18. If the expansion in powers of x of the function (1)/((1-ax)(1-bx)) is ...

    Text Solution

    |

  19. The sum of series: ""^(20)C(0)-""^(20)C(1)+""^(20)C(2)-""^(20)C(3)+ ...

    Text Solution

    |

  20. The remainder left out when 8^(2n)-(62)^(2n+1) is divided by 9 is

    Text Solution

    |