Home
Class 11
MATHS
If 2veca+6vecb and 3veca+mvecb are paral...

If `2veca+6vecb` and `3veca+mvecb` are parallel then the vector of m is:

A

3

B

6

C

9

D

12

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • Vector Algebra -I

    PREMIERS PUBLISHERS|Exercise Solution to Exercise(8.5)|25 Videos

  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    PREMIERS PUBLISHERS|Exercise PROBLEM FOR PRACTICE (CHOOSE THE CORRECT OPTION)|28 Videos

Similar Questions

Explore conceptually related problems

If veca+2vecb and 3veca+mvecb are parallel, then the value of m is

If veca +5vecb and 4veca+mvecb are parallel then m is :

If veca and vecb are non-zero, non parallel vectors, then the value of |veca + vecb+veca xx vecb|^(2) +|veca + vecb-veca xx vecb|^(2) equals

If veca,vecb, vecc and veca',vecb',vecc' are reciprocal system of vectors, then prove that veca'xxvecb'+vecb'xxvecc'+vecc'xxveca'=(veca+vecb+vecc)/([vecavecbvecc])

If veca, vecb and vecc are non-coplanar vectors, prove that the four points 2veca+3vecb-vecc, veca-2vecb+3vecc, 3veca+4vecb-2vecc and veca-6vecb+ 6 vecc are coplanar.

If veca, vecb and vecc are three non-zero vectors, no two of which are collinear, veca +2 vecb is collinear with vecc and vecb + 3 vecc is collinear with veca , then find the value of |veca + 2vecb + 6vecc| .

If 2veca, 3vecb,2(veca xx vecb) are position vectors of the vectors A,B,C, of triangleABC and |veca|=|vecb|=1,vec(OA).vec(OB)=-3 (where O is the origin), then

The points with position vectors veca + vecb, veca-vecb and veca +k vecb are collinear for all real values of k.

PREMIERS PUBLISHERS-Vector Algebra -I-Choose Correct Option
  1. Show that vecaxx(vecb+vecc)+vecbxx(vecc+veca)+veccxx(veca+vecb)=vec0.

    Text Solution

    |

  2. Two vertices of a triangle hence position vetors 2veci+4vecj-5veck and...

    Text Solution

    |

  3. If 2veca+6vecb and 3veca+mvecb are parallel then the vector of m is:

    Text Solution

    |

  4. Match the following

    Text Solution

    |

  5. Find the incorrect statement

    Text Solution

    |

  6. Find the incorrect statement

    Text Solution

    |

  7. Find the correct statement

    Text Solution

    |

  8. Find the correct statement: Given vec OA =veca, vecOB=vecb and vecOP =...

    Text Solution

    |

  9. The vectors veca-vecb,vecb-vecc,vecc-veca are

    Text Solution

    |

  10. Find the odd man out.

    Text Solution

    |

  11. Find which in suitable for the blank space given below:|veca.vecb|…….....

    Text Solution

    |

  12. Assertion If D is the midpoint of the side BC of a triangle ABC then v...

    Text Solution

    |

  13. Assertion If G is the centroid of the triangle ABC then vecGA+vecGB+v...

    Text Solution

    |

  14. Find (veci+vecj).{(vecj+veck) X (veck+veci)}:

    Text Solution

    |

  15. If veca +5vecb and 4veca+mvecbare parallel then m is :

    Text Solution

    |

  16. If the projection of veca on vecb and projection of vecb on veca ar...

    Text Solution

    |

  17. If 60^(@), 45^(@), alpha^(@)are the directional angles of a vector vec...

    Text Solution

    |

  18. If aplha, beta, gamma are the directional angles of a vector then sin^...

    Text Solution

    |

  19. If vecr=(5veca-3vecb)/2, then the point P whose position vector rdivid...

    Text Solution

    |

  20. The Position vectors of A,B,C are 3veci+2vecj-veck, 2veci+4vecj+5veck ...

    Text Solution

    |