Home
Class 12
MATHS
Evaluate the following products: (2 hat ...

Evaluate the following products: `(2 hat i+3 hat j)*(-hat i+3 hat j +hat k)`.

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

Evaluate the following products: (3 hat i-6 hat j+2 hat k)*(2 hat i+hat j-2 hat k) .

Calculate the product ((hat i- 2 hat j+ 3 hat k) cross (2 hat i+ hat j- 3 hat k)) * (-3 hat i+ hat j+ 2 hat k ) .

Show that the points A(-2 hat i+ 3 hat j + 5 hat k) , B(hat i+ 2 hat j+ 3 hat k) and C(7 hat i-hat k) are collinear.

Find a unit vector perpendicular to both the vectors (3 hat i + 2 hat j - hat k) and ( hat i + 2 hat j + hat k) .

Find the shortest distance (S.D.) between the lines : vec r = hat i + hat j + lambda (2 hat i- hat j + hat k) and vec r = 2 hat i + hat j- hat k + mu (3 hat i - 5 hat j + 2 hat k) .

Find the unit vector in the direction of sum of vectors -2 hat i- 3 hat j+ 2 hat k , 3 hat i+ 4 hat j- 2 hat k and hat i+ 2 hat j+ 6 hat k .

Find the magnitude of vec a=(hat i+3 hat j- 2 hat k)*(-hat i+3 hat k) .

Find the angle between the vectors 2 hat i -hat j+ hat k and 3 hat i +4hat j - hat k

Find the magnitude of vec v underset 1= (3 hat k+ 4 hat j)* (hat i+ hat j- hat k) .

Prove that the vectors 2 hat i- hat j+ hat k , hat i- 3 hat j- 5 hat k and 3 hat i- 4 hat j- 4 hat k are coplanar.

PRADEEP PUBLICATION-VECTORS-EXERCISE
  1. If vec a=4 hat i+3 hat j+hat k and vec b=hat i-2 hat k, find | vec a *...

    Text Solution

    |

  2. Evaluate the following products: (3 hat i-6 hat j+2 hat k)*(2 hat i+ha...

    Text Solution

    |

  3. Evaluate the following products: (2 hat i+3 hat j)*(-hat i+3 hat j +ha...

    Text Solution

    |

  4. Evaluate the following products: (2,-1,1)*(3,4,-1).

    Text Solution

    |

  5. Taking vec a= 2 hat i-3 hat j- hat k and vec b=hat i+4 hat j-2 hat k, ...

    Text Solution

    |

  6. If vec a=3 hat i+4 hat j and vec b=hat i-hat j+hat k, find the value o...

    Text Solution

    |

  7. Find the magnitude of vec a=(hat i+3 hat j- 2 hat k)*(-hat i+3 hat k).

    Text Solution

    |

  8. Given |quad vec a|=10,|quad vec b|=2 and vec a *vec b=12, find | vec a...

    Text Solution

    |

  9. Define vec a*vec b where vec a and vec b are any two vectors. Find ve...

    Text Solution

    |

  10. Find a unit vector perpendicular to both the vectors hat i-2 hat j+3 h...

    Text Solution

    |

  11. Find a unit vector perpendicular to both the planes of vec a and vec b...

    Text Solution

    |

  12. Find a unit vector perpendicular to the plane of two vectors a=hat(i)-...

    Text Solution

    |

  13. Find the equation of a plane through the points (3,-1,2), (1,-1,-3) an...

    Text Solution

    |

  14. Find a unit vector perpendicular to each of the vectors hat i+2 hat j+...

    Text Solution

    |

  15. Find the sine of the angle between the vectors : (3,0,3) and (1,2,-7)

    Text Solution

    |

  16. Find the sine of the angle between the vectors : 2 hat i+ 4 hat j+ 4 ...

    Text Solution

    |

  17. Determine the area of the parallelogram whose adjacent sides are the ...

    Text Solution

    |

  18. Find the area of the parallelogram having two adjacent sides OA and OB...

    Text Solution

    |

  19. Find the area of triangle PQR where P,Q,R have respectively coordinate...

    Text Solution

    |

  20. Find the area of the triangle formed by O,A,B where : vec OA= hat i+ ...

    Text Solution

    |