Home
Class 11
MATHS
If nC6=nC2, find ^nC2....

If `nC_6=nC_2`, find `^nC_2`.

Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    JBD PUBLICATION|Exercise EXAMPLE|59 Videos

  • MODEL PAPER (8)

    JBD PUBLICATION|Exercise EXERICSE|41 Videos

  • PRINCIPLE OF MATHEMATICAL INDUCTION

    JBD PUBLICATION|Exercise EXAMPLE|11 Videos

Similar Questions

Explore conceptually related problems

If "^nC_8= ^nC_2 , find "^nC_2 .

If "^nC_8 = "^nC_2 , find "^nC_2 .

If mC_1=nC_2 , then

If "^(2n)C_3 : ^nC_2= 12: 1 , find n .

If ""^nC_r= ""^nC_s , then n is:

If "^nC_10= ^nC_12 , determine n and hence "^nC_5 .

If ""^nC_8= ""^nC_9 , then n is:

If ^nC_12=^nC_8 , then n is equal to:

If C_r=^nC_r then (C_1)/2-(C_2)/3+(C_3)/4-...........-(C_100)/101 is equal to

If ^nC_(r-1)=36 , ^nC_r=84 and ^nC_(r+1)=126 , then find ^rC_2 .

JBD PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXAMPLE
  1. In how many ways can 5 girls be seated in a row so that two girls Ridh...

    Text Solution

    |

  2. Find the number of permutations of the letters of word 'DISSIMILAR' wh...

    Text Solution

    |

  3. If nC6=nC2, find ^nC2.

    Text Solution

    |

  4. If 10Cr=^10C2 find the values of r.

    Text Solution

    |

  5. A bag contains 5 black and 6 red balls. Determine the number of ways i...

    Text Solution

    |

  6. In how many ways can a student choose a programme of 5 courses if 9 co...

    Text Solution

    |

  7. How many chords can be drawn through 21 points on a circle?

    Text Solution

    |

  8. Out of 18 points in a plane, no three are in the same straight line ex...

    Text Solution

    |

  9. How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and ...

    Text Solution

    |

  10. How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and ...

    Text Solution

    |

  11. If (n!)/(2!(n-2)!):(n!)/(4!(n-4)!) =2:1. Find the value of n.

    Text Solution

    |

  12. show that 2^16 divides 32!. also, find the largest value of n for whic...

    Text Solution

    |

  13. What is the largest power of 2 contained in 32!.

    Text Solution

    |

  14. How many different words (with or without meaning) can be formed using...

    Text Solution

    |

  15. Find the value of n such that ""^nP5 = 42 ""^nP3,,n gt 4.

    Text Solution

    |

  16. Find n if "^(n-1)P3 : "^nP4 =1:9.

    Text Solution

    |

  17. Find r if "^5Pr =2 "^6P(r-1).

    Text Solution

    |

  18. How many words, with or without meaning can be made from the letters o...

    Text Solution

    |

  19. How many words, with or without meaning can be made from the letters o...

    Text Solution

    |

  20. How many words, with or without meaning can be made from the letters o...

    Text Solution

    |