Home
Class 11
MATHS
find the co-efficient of (2r+4)th and (r...

find the co-efficient of (2r+4)th and (r-2)th terms in the expansion of `(1+x)^18`. If the co-efficients are equal find r.

Promotional Banner

Topper's Solved these Questions

  • Techno India Group Academia South Kolkata, Question Paper

    UNITED BOOK HOUSE|Exercise Exercise |41 Videos

  • THE SCOTTISH CHURCH COLLEGIATE SCHOOL

    UNITED BOOK HOUSE|Exercise EXERCISE|53 Videos

Similar Questions

Explore conceptually related problems

Find the value of r,if the coefficients of (2r+4)th and (r-2) -th terms in the expansion of (1+x)^18 are equal

If the coefficients of (r-5)^th and (2r - 1)^th terms in the expansion of (1 + x)^34 are equal, find r.

Find the value of r, if the coefficients of (2r+4) -th and (r-2) -th terms in the expansion of (1+x)^(18) are equal.

If the coefficients of (r-5) th and(2r-1) th terms in the expansion of (1+x)^(34) are equal, find rdot

Find the 4^th term in the expansion of (x-2y)^12 .

In the expansion of (1+x)^(m+n) the co-efficient of x^m is

If the binomial coefficient of the (2r+4)^(th) term and (r-2)^(th) term in the expansion of (1+x)^(18) are equal find the value of r.

The coefficients of 5th ,6th and 7th terms in the expansion of (1+x)^(n) are A.P . ,find n .

Give the integers rgt1 , ngt2 and c0-efficients of (3r)^th and (r+2)^(th) term in the binomial expansion of (1+x)^(2n) are equal then

If the coefficients of the (r-1) th and (2r+3) th terms in the equation of (1+x)^(15) are equal, find the value of r.

UNITED BOOK HOUSE-TECHNO INDIA GROUP ACADEMIA,SOUTH KOLKATA.-EXERCISE
  1. Prove by mathematical induction that1/1.3+1/3.5+1/5.7+...+1/((2n-1)(2n...

    Text Solution

    |

  2. If x+iy=2/(3+costheta+isintheta),show that 2x^2+2y^2=3x-1

    Text Solution

    |

  3. find the co-efficient of (2r+4)th and (r-2)th terms in the expansion o...

    Text Solution

    |

  4. If p, q, r are in G.P and the equation px^2+2qx+r=0 and dx^2+2ex+f=0 h...

    Text Solution

    |

  5. Show that the points (a,0),(0,b)and (3a,-2b)are collinear.Also find th...

    Text Solution

    |

  6. Find the distance between the parallel lines 4x-3y+5=0 and 4x-3y+7=0.

    Text Solution

    |

  7. Find the equation of a circle through origin which cuts of intercepts ...

    Text Solution

    |

  8. Find the value of the limit lim(nrarroo)(1^2+2^2+...+n^2)/n^3

    Text Solution

    |

  9. If y=sqrt((1-x)/(1+x)),prove that (1-x^2)dy/dx+y=0

    Text Solution

    |

  10. If x^2is an odd number then x is also odd number,justify the validity ...

    Text Solution

    |

  11. If x and y are odd integers, then xy is also an odd integer r examine ...

    Text Solution

    |

  12. In single throw of two dice,the probality of obtaning 'a total of 8' i...

    Text Solution

    |

  13. Find S.D from the following data:

    Text Solution

    |

  14. Solve :sqrt3cosx-sinx=1

    Text Solution

    |

  15. Prove that, cos20^@cos40^@cos60^@cos80^@=1/16

    Text Solution

    |

  16. Exhibit graphically the solution sets of the following system of linea...

    Text Solution

    |

  17. Solve :3x^2+8ix+3=0

    Text Solution

    |

  18. Find the sum of n terms of the series 1/2.5+1/5.8+1/8.11…to n terms.

    Text Solution

    |

  19. There are 10 points in a plane of which 4 are collinear, Find the numb...

    Text Solution

    |

  20. There are 10 points in a plane of which 4 are collinear, find the numb...

    Text Solution

    |