Home
Class 12
MATHS
If P = (1, 5, 4) and Q = (4, 1, -2) then...

If P = (1, 5, 4) and Q = (4, 1, -2) then find the d.r. of PQ.

A

`lt3, 4, 6gt`

B

`lt3, -4, -6gt`

C

`larr3, -4, -6gt`

D

`lt3, 4, -6gt`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    JMD PUBLICATION|Exercise EXERCISE|29 Videos
  • PSEB SAMPLE QUESTIONS

    JMD PUBLICATION|Exercise EXAMPLE|51 Videos

Similar Questions

Explore conceptually related problems

Given that P (3, 2,-4), Q (5, 4,-6) and R (9, 8, -10) are collinear. Find the ratio in which Q divides PR.

Given that p(3,2,-4) , Q (5,4, -6) and R (9,8,-10) are collinear find the ratio in which Q divides PR

show that the poins :- P (4, 4), Q (2,-3), R (- 5,- 5) and S (- 3, 2) are the corners of a rhombus.

The vertices of a triangle PQR are P(2, 1), Q (-2,3) and R (4, 5). Find the equation of the median through the vertex R.

Let P = {1, 4,9} and Q= {2,4,6}. Write the elements of (P nn Q)xx (P uu Q) . Also find (P xx Q) nn (Q xx P) .

If p ,q , in {1,2,3,4}, then find the number of equations of the form p x^2+q x+1=0 having real roots.

Find the vector joining the points P(2, 3, 0) and Q(– 1, – 2, – 4) directed from P to Q.

The vertices of triangle PQR are P (2, 1), Q (-2, 3) and R (4, 5). Find equation of the median through the vertex R.

JMD PUBLICATION-Probability-EXAMPLE
  1. The intercept cut off by plane 2x + 3y - z = 6 on y-axis

    Text Solution

    |

  2. Find d.r. of the line frac{4-x}{2}=frac{y}{6}=frac{1-z}{3}

    Text Solution

    |

  3. If P = (1, 5, 4) and Q = (4, 1, -2) then find the d.r. of PQ.

    Text Solution

    |

  4. Direction cosines of the line parallel to line frac{x-5}{2}=frac{y+3}{...

    Text Solution

    |

  5. Find distance of (-2, 3, 4) from x-axis is

    Text Solution

    |

  6. Find the d.r. of the normal to the plane 4x + 3y - z + 6 = 0 and

    Text Solution

    |

  7. The distance between the planes, 3x+ 2y-6z-14=0 and 3x+ 2y-6z+21 =0 is...

    Text Solution

    |

  8. The point which lies in the plane given by the equation 5x + y - z = 7...

    Text Solution

    |

  9. If cos alpha , cos beta, cos gamma are the direction-cosines of a line...

    Text Solution

    |

  10. Fill in the blanks : The direction cosines of the line joining point...

    Text Solution

    |

  11. Fill in the blanks : The direction ratios of the line frac{2x - 1}{3...

    Text Solution

    |

  12. Fill in the blanks : The equation of the line passing through (1, 2,...

    Text Solution

    |

  13. Fill in the blanks : The x-intercept of the plane 2x - 3y + 5z + 4 =...

    Text Solution

    |

  14. State whether it is true or false:If a line makes angles alpha, beta, ...

    Text Solution

    |

  15. State True/False. the x-intercept of 3x - 4y + 6z = 12 is 3.

    Text Solution

    |

  16. State True/False. the length of perpendicular from origin to plane 4...

    Text Solution

    |

  17. Find the length of the perpendicular drawn from the point (2, 3, 7) to...

    Text Solution

    |

  18. Show that the lines vecr=3hati+2hatj-4hatk+lambda(hati+2hatj+2hatk)and...

    Text Solution

    |

  19. Find the equation of the plane passing through the points (-1, 2, 0) ,...

    Text Solution

    |

  20. Find the equation of the line passing through the point P(4, 6, 2) and...

    Text Solution

    |