Home
Class 12
MATHS
If vec a, vec b and vec c are non-coplan...

If `vec a`, `vec b` and `vec c` are non-coplanar (independent) vectors, prove that the vectors `vec a- 2 vec b+ 3 vec c`, `-2 vec a + 3 vec b- 4 vec c` and `vec a -vec b+ 2 vec c ` are also linearly independent.

Promotional Banner

Topper's Solved these Questions

  • VECTORS

    PRADEEP PUBLICATION|Exercise EXERCISE|438 Videos
  • THREE DIMENSIONAL GEOMETRY

    PRADEEP PUBLICATION|Exercise EXERCISE|373 Videos

Similar Questions

Explore conceptually related problems

Prove that [vec a+ vec b, vec b +vec c, vec c + vec a]= 2 [vec a vec b vec c]

For any three vectors vec a,vec b and vec c , show that vec a- vec b,vec b- vec c and vec c- vec a are coplanar.

Prove that [vec a -vec b, vec b - vec c, vec c- vec a] =0

Show that vectors vec a ,\ vec b ,\ vec c are coplanar if vec a+ vec b ,\ vec b+ vec c ,\ vec c+ vec a are coplanar.

If vec a , vec b , vec c are coplanar vectors, prove that |[vec a, vec b, vec c],[vec a.vec a ,vec a.vec b,vec a.vec c],[vec b.vec a, vec b.vec b, vec b.vec c]|=vec 0 .

If vec a,vec b,vec c are any three vectors, prove that vec a xx (vec b xx vec c) +vec b xx(vec c xx vec a)+ vec c xx(vec a xx vec b) = vec 0

For any three vectors a ,\ b ,\ c prove that [ vec a+ vec b\ , vec b+ vec c\ , vec c+ vec a]=2\ [ vec a\ vec b\ vec c]dot

If vec a, vec b ,vec c are mutually perpendicular vectors of equal magnitudes, show that the vector vec a+ vec b + vec c is equally inclined to vec a, vec b and vec c .

Show that the points with position vectors vec a- 2 vec b+ 3 vec c , -2 vec a + 3 vec b+ 2 vec c and -8 vec a + 13 vec b are collinear, whatever vec a , vec b and vec c may be.

Find a unit vector in the direction of vec a- 2 vec b+ 3 vec c if vec a= hat i+ hat j , vec b= hat j+ hat k and vec c= vec i+ vec k .

PRADEEP PUBLICATION-VECTORS-EXERCISE
  1. Show that the points (1,1,1),(2,-1,2),(-1,2,2) and (2,2,-1) are coplan...

    Text Solution

    |

  2. Show that the points A(4,5,1), B(0,-1,-1), C(3,9,4) and D(-4,4,4) are ...

    Text Solution

    |

  3. If vec a, vec b and vec c are non-coplanar (independent) vectors, prov...

    Text Solution

    |

  4. Find vec v underset 1 * vec v underset 2 when vec v underset 1= 4 hat ...

    Text Solution

    |

  5. Find vec v underset 1 * vec v underset 2 when vec v underset 1= (1,3,5...

    Text Solution

    |

  6. Find the angle between the vectors: vec v underset 1= hat i-2 hat j-...

    Text Solution

    |

  7. Find the angle between the vectors: vec v underset 1= (3,5,4) and ve...

    Text Solution

    |

  8. Find the value of lambda so that the vectors vec a= 3 hat i + 3 hat j-...

    Text Solution

    |

  9. If vec a= 2 hat i- hat j+ hat k, vec b= hat i+ hat j- 2 hat k and vec ...

    Text Solution

    |

  10. Find the value of a for which the vector 3 hat i+ 2 hat j+ 9 hat k and...

    Text Solution

    |

  11. Find the value of a for which the vector 3 hat i+ 2 hat j+ 9 hat k and...

    Text Solution

    |

  12. If (vec a)^2 =(vec b)^2, is it necessary that vec a= vec b ?

    Text Solution

    |

  13. Find the angles which the vector 3 hat i- 6 hat j+ 2 hat k makes the c...

    Text Solution

    |

  14. If vec a and vec b are two vectors such that |quad vec a + vec b|= |qu...

    Text Solution

    |

  15. If vec a and vec b are two vectors such that |quad vec a + vec b|= |qu...

    Text Solution

    |

  16. If vec a is any vector in space, then show that vec a= ( vec a* hat i...

    Text Solution

    |

  17. If the vertices A,B,C of triangle ABC have position vectors (1,2,3), (...

    Text Solution

    |

  18. If hat i+ hat j+ hat k,2 hat i+ 5 hat j, 3 hat i+ 2 hat j- 3 hat k and...

    Text Solution

    |

  19. If vec a= hat i+ 2hat j- 3 hat k and vec b= 3 hat i- hat j+ 2 hat k, s...

    Text Solution

    |

  20. Find the projection (vector) of the vector 7 hat i+ hat j- 4 hat k on ...

    Text Solution

    |