Home
Class 11
MATHS
There are 12 points in a plane of which ...

There are 12 points in a plane of which 5 points are collinear, then the number of lines obtained by joining these points in pairs is `""^(12)C_(2) - ""^(5)C_(2)`.

Text Solution

Verified by Experts

False
Required number of lines `= ""^(12)C_(2) - ""^(5)C_(2) + 1`
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    NCERT EXEMPLAR|Exercise Matching The Columns|5 Videos

  • PERMUTATIONS AND COMBINATIONS

    NCERT EXEMPLAR|Exercise Fillers|9 Videos

  • MATHEMATICAL REASONING

    NCERT EXEMPLAR|Exercise OBJECTIVE TYPE QUESTIONS|21 Videos

  • PRINCIPLE OF MATHEMATICAL INDUCTION

    NCERT EXEMPLAR|Exercise OBJECTIVE TYPE QUESTIONS|5 Videos

Similar Questions

Explore conceptually related problems

There are 10 points in a plane, out of which 5 are collinear. Find the number of straight lines formed by joining them.

There are 10 points in a plane, out of which 6 are collinear. If N is the number of triangles formed by joining these points, then :

There are 10 points in a plane out of which 5 are collinear. The number of straight lines than can be drawn by joining these points will be

There are 18 points in a plane of which 5 are collinear. How many straight lines can be formed by joining them?

There are 12 points in a plane in which 6 are collinear. Number of different triangles that can be drawn by joining them is

There are 2n points in a plane in which m are collinear. Number of quadrilateral formed by joining these lines

There are 12 points in a plane of which 5 are collinear. Except these five points no three are collinear, then