Home
Class 11
MATHS
If a straight line makes an angle cos^(-...

If a straight line makes an angle `cos^(-1)(1/sqrt(3))` with each of the positive x, y and z-axis, a vector parallel to that line is

A

`bar(i)`

B

`bar(i)+bar(j)`

C

`bar(j)+bar(k)`

D

`bar(i)+bar(j)+bar(k)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF VECTORS

    AAKASH SERIES|Exercise EXERCISE - II|77 Videos
  • PROPERTIES OF VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISES|55 Videos
  • PROPERTIES OF VECTORS

    AAKASH SERIES|Exercise ADDITIONAL EXERCISE|10 Videos
  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL II) (Linked Comprehension Type Questions Passage -III:)|3 Videos
  • RATE MEASUREMENT

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE - 1) (LEVEL - 1) (STRAIGHT OBJECTIVE TYPE QUESTION)|43 Videos

Similar Questions

Explore conceptually related problems

Find the equation of the straight line which makes and angle 60^(@) with the positive direction of x-axis and the y-intercept cut of by it is 3.

If a line makes an angle of pi//4 with the positive directions of each of x-axis and y-axis, then the angle that the line makes with the positive direction of the z-axis is

If a line makes angles 60^(@), 60^(@) with the positive x-axis and y-axis then the angle made by the line with positive z-axis is

A straight line through P(3,4) makes an angle of 60^(@) with the positive direction of the X-axis. Find the coordinates of the points with the line whre are 5 units away from P.

A straight line passing through (1, 1, 1) makes an angle of 60^(@) with the positive direction of the z-axis, and the cosines of the angles made with the positive directions of y, x-axis are in the ratio sqrt(3):1 . Then the acute angle between the two possible positions of the line is

If a line makes angles cos^(-1)(1//5),cos^(-1)(3//5) with X and Y- axes respectively, then the angle made by the line with Z-axis is

If the straight line through the point P(3,4) makes an angle pi//6 with the x-axis in the positive direction and meets the line 3x+5y+1=0 at Q the length PQ is

AAKASH SERIES-PROPERTIES OF VECTORS-EXERCISE - I
  1. If bar(OP)=2bar(i)+3bar(j)-bar(k), bar(OQ)=3bar(i)-4bar(j)+2bar(k) the...

    Text Solution

    |

  2. Unit vector making angles pi/6, pi/6, pi/3 with bar(i), bar(j), bar(k)...

    Text Solution

    |

  3. If a straight line makes an angle cos^(-1)(1/sqrt(3)) with each of the...

    Text Solution

    |

  4. If (bar(a), bar(b))=60^(@)" then "(-bar(a), -bar(b))=

    Text Solution

    |

  5. Any two collinear vectors are

    Text Solution

    |

  6. Any three coplanar vectors are

    Text Solution

    |

  7. If bar(a) and bar(b) are two non-zero, non-collinear vectors such that...

    Text Solution

    |

  8. If bar(a)=bar(i)-2bar(j)+bar(k), bar(b)=4bar(i)+2bar(j)-bar(k), bar(c)...

    Text Solution

    |

  9. If bar(a)=bar(i)+2bar(j)+2bar(k) and bar(b)=3bar(i)+6bar(j)+2bar(k) th...

    Text Solution

    |

  10. If 2bar(i)+3bar(j)-6bar(k), 6bar(i)-2bar(j)+3bar(k) are two consecutiv...

    Text Solution

    |

  11. If ABCD is a parallelogram such that bar(AB)=bar(a), bar(BC)=bar(b)" t...

    Text Solution

    |

  12. A point C = (5a + 4b - 5c)/(3) divides the line joining A = a - 2b + 3...

    Text Solution

    |

  13. P, Q, R, S have position vectors bar(p), bar(q), bar(r), bar(s) respec...

    Text Solution

    |

  14. The ratio in which the line segment joining the points with P.V.'s bar...

    Text Solution

    |

  15. The ratio in which bar(i)+2bar(j)+3bar(k) divides the join of -2bar(i)...

    Text Solution

    |

  16. Let 'O' be the origin and A, B be two points. bar(p), bar(q) are vecto...

    Text Solution

    |

  17. The vector equation of the line passing through the point 2bar(i)+bar(...

    Text Solution

    |

  18. The equation to the line passing through the points A(bar(i)+bar(j)+ba...

    Text Solution

    |

  19. The cartesian equation of the line passing through the point (2, -1, 4...

    Text Solution

    |

  20. The cartesian equation to the line passing through the points A(1, 2, ...

    Text Solution

    |