Home
Class 12
MATHS
If a unit vector veca makes angle (pi)/...

If a unit vector `veca ` makes angle `(pi)/(4)` with `hati , (pi)/(3)` with `hatj` and acute angle `theta ` with `hatk` then find the component of `veca` ang the angle `theta.`

Text Solution

Verified by Experts

The correct Answer is:
`1/(sqrt(2))hati,1/2hatj,+-1/2hatk,60^(@)`
Promotional Banner

Topper's Solved these Questions

  • VECTOR ALGEBRA

    ACCURATE PUBLICATION|Exercise QUESTIONS CARRYING 1 MARK (TYPE - III : TRUE RO FALSE QUESTIONS)|15 Videos
  • THREE DIMENSIONAL GEOMETRY

    ACCURATE PUBLICATION|Exercise QUESTIONS CARRYING 6 MARKS:|56 Videos

Similar Questions

Explore conceptually related problems

If a unit vector veca , makes angles pi/3 with hati , pi/4 wih hatj and an acute angle theta with hatk , then find theta and hence, the components of veca .

If a unit vector vec a , makes angles pi/3 with hat i . pi/4 with hat j and an acute angle θ with hat k , then find θ and hence the component of vec a .

Find a vector veca of magnitude 5sqrt2 making an angle pi/4 with x-axis, pi/2 with y-axis and at angle 'theta' with z-axis.

If veca=4hati+6hatj and vecb=3hatj+4hatk find the vector component of veca along vecb .

If unit vectors veca and vecb are inclined at an angle 2 theta such that |veca - vecb| lt 1 and 0 le theta le pi , then theta lies in the interval

It theta be the angle between the vectors hati + hatj and hatj + hatk then theta is

The values of x for which the angle between the vectors veca =xhati - 3hatj-hatk and vecb = 2x hati + x hatj -hatk is acute, and the angle, between the vector vecb and the axis of ordinates is obtuse, are

If vecA = 2 hati + 3 hatj and vecB = 2 hati +1 hatj , find the angle between vecA and vecB .

ACCURATE PUBLICATION-VECTOR ALGEBRA-QUESTIONS CARRYING 2 MARKS
  1. Show that the point whose position vectors are veca=4hati-3hatj+hatk,v...

    Text Solution

    |

  2. The scalar product of the vector hati+hatj+hatk with a unit vector alo...

    Text Solution

    |

  3. If a unit vector veca makes angle (pi)/(4) with hati , (pi)/(3) with ...

    Text Solution

    |

  4. Let veca=hati+4hatj+2hatk,vecb=3hati-2hatj+7hatk and vecc=2hati-hatj+4...

    Text Solution

    |

  5. Dot product of a vector with vectors hati-hatj+hatk,2hatk+hatj+3hatk a...

    Text Solution

    |

  6. If veca+vecb+vecc=vec0 and |veca|=3,|vecb|=5,|vecc|=7, show that the a...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  9. If veca,vecb,vecc are three vectors such that : |veca|=5,|vecb|=12 and...

    Text Solution

    |

  10. If with reference to the right handed system of mutually perpendicular...

    Text Solution

    |

  11. Using vectors, prove that a parallelogram whose diagonals are equal is...

    Text Solution

    |

  12. For any vector veca the value of (vecaxxhati)^(2)+(vecaxxhatj)^(2)+(ve...

    Text Solution

    |

  13. Find a unit vector perpendicular to the plane of triangle ABC where th...

    Text Solution

    |

  14. Find a unit vector perpendicular to each of the vectors (veca+vecb) an...

    Text Solution

    |

  15. Find a vector of magnitude sqrt(171), which is perpendicular to both o...

    Text Solution

    |

  16. Find a vector of magnitude 5 units, perpendicular to each of the vecto...

    Text Solution

    |

  17. Find the area of a parallelogram whose adjacent sides are represented ...

    Text Solution

    |

  18. If veca=2hati-3hatj+hatk, vecb=hati+hatk, vecc=2hatj-hatk are three ve...

    Text Solution

    |

  19. With help of vectors find the area of the triangle with vertices A(2,3...

    Text Solution

    |

  20. Using vectors find the area of the triange ABC with vertices A(1,2,3),...

    Text Solution

    |