Home
Class 11
MATHS
How many chords can be drawn through 21 ...

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

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

How many lines can be drawn through 6 points on a circle ?

How many triangles can be drawn through n points on a circle ?

Given three non-collinear points. How many circles can be drawn through these three points?

How many circles can be drawn to pass through two given points?

How many lines can be drawn through three non-collinear points?

How many lines can pass through a given point?

How many lines can pass through? A given point?

How many lines can pass through one given point?

JBD PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXAMPLE
  1. A bag contains 5 black and 6 red balls. Determine the number of ways i...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  18. How many words can be formed by using the letters of the word 'ORIENTA...

    Text Solution

    |

  19. There are three prizes to be distributed among 6 students. In how many...

    Text Solution

    |

  20. There are three prizes to be distributed among 6 students. In how many...

    Text Solution

    |