Home
Class 12
MATHS
Find the area of the parallelogram whose...

Find the area of the parallelogram whose adjacent sides are gives by the vectors. `2 hat i + hat j + hat k` and `2 hat i + hat j - hat k`.

Promotional Banner

Topper's Solved these Questions

  • THREE DIMENSIONAL GEOMETRY

    MODERN PUBLICATION|Exercise EXERCISE|40 Videos

Similar Questions

Explore conceptually related problems

Obtain the volume of the parallelopiped whose sides are vectors vec a= 2 hat i - 3 hat j + 4 hat k , vec b= hat i +2 hat j - hat k , vec c= 3 hat i - hat j +2 hat k . Also find the vector (vec a×vec b)×vec c .

MODERN PUBLICATION-VECTOR-EXERCISE
  1. What is the value of (hat i+hat j)×(hat j+hat k).(hat k+hat i)?

    Text Solution

    |

  2. If vec Avec C and vec Bvec D are the diagonals of the parallelogram AB...

    Text Solution

    |

  3. Find the area of the parallelogram whose adjacent sides are gives by t...

    Text Solution

    |

  4. If vec(a) and vec(b) are two vectors such that |vec(a) + vec(b)| = |ve...

    Text Solution

    |

  5. Determine the area of parallelogram whose adjacent sides are the vecto...

    Text Solution

    |

  6. Prove that (vec a × vec b)^(2) = a^(2)b^(2)-(vec a . vec b)^(2).

    Text Solution

    |

  7. Prove that (vec a × vec b).(vec c × vec d) = [[vec a.vec c,vec a.vec d...

    Text Solution

    |

  8. Find a unit vector in direction of vec a-vec b, when vec a = 4 hat i +...

    Text Solution

    |

  9. If vec a and vec b be perpendicular vectors, then prove that (vec a + ...

    Text Solution

    |

  10. Find the value of lambda so that the three vectors are co-planar. (2,-...

    Text Solution

    |

  11. Determine k such that a vector vec(r) is at right angles to each of th...

    Text Solution

    |

  12. Find the scalar and vector projection of veca on vecb. veca = hati+hat...

    Text Solution

    |

  13. Calculate the area of the triangle ABC (by vector method) where A(1,2,...

    Text Solution

    |

  14. Prove that : |veca + vecb|le|veca|+|vecb|.

    Text Solution

    |

  15. Show that vec a × (vec b+vec c) + vec b × (vec c+vec a) + vec c × (vec...

    Text Solution

    |

  16. If vec(a) and vec(b) are unit vectors, then what is the angle between ...

    Text Solution

    |

  17. Prove by vector method that the diagonals of a parallelogram bisect ea...

    Text Solution

    |

  18. Prove by vector method that in a parallelogram, the line joining a ve...

    Text Solution

    |

  19. If veca, vecb, vecc are mutually perpendicular vectors of equal magnit...

    Text Solution

    |

  20. Prove the following by vector method. Median to the base of an isoscel...

    Text Solution

    |