Home
Class 12
MATHS
If the lines joining the origin and the ...

If the lines joining the origin and the point of intersection of curves `a x^2+2h x y+b y^2+2gx+0` and `a_1x^2+2h_1x y+b_1y^2+2g_1x=0` are mutually perpendicular, then prove that `g(a_1+b_1)=g_1(a+b)dot`

A

`ag+a_(1)g_(1)=bg+b_(1)g_(1)`

B

`a+b="gg"_(1)(a_(1)+b_(1))`

C

`g(a_(1)+b_(1))=g_(1)(a+b)`

D

`g(a+b)=g_(1)(a_(1)+b_(1))`

Text Solution

Verified by Experts

The correct Answer is:
C

NA
Promotional Banner

Topper's Solved these Questions

  • PAIR OF STRAIGHT LINES

    TARGET PUBLICATION|Exercise EVALUATION TEST|11 Videos
  • PAIR OF STRAIGHT LINES

    TARGET PUBLICATION|Exercise CRITICAL THINKING|58 Videos
  • MODEL QUESTION PAPER-II

    TARGET PUBLICATION|Exercise MCQs|49 Videos
  • PLANE

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

Similar Questions

Explore conceptually related problems

If the lines joining the origin and the point of intersection of curves ax^(2)+2hxy+by^(2)+2gx+0 and a_(1)x^(2)+2h_(1)xy+b_(1)y^(2)+2g_(1)x=0 are mutually perpendicular,then prove that g(a_(1)+b_(1))=g_(1)(a+b)

The pair of lines joining origin to the points of intersection of,the two curves ax^(2)+2hxy+by^(2)+2gx=0 and a'x^(2)+2h'xy+b'y^(2)+2g'x=0 will be at right angles,if

The acute angle formed between the lines joining the origin to the points of intersection of the curves x^2+y^2-2x-1=0 and x+y=1 , is

The lines joining the origin to the points of intersection of the line 3x-2y-1 and the curve 3x^(2)+5xy-3y^(2)+2x+3y=0, are

If the pair of lines joining the origin and the points of intersection of the line ax+by=1 and the curve x^(2)+y^(2)-x-y-1=0 are at right angles, then the locus of the point (a, b) is a circle of radius=

TARGET PUBLICATION-PAIR OF STRAIGHT LINES-COMPETITIVE THINKING
  1. Which of the following equation does not represent a pair of li...

    Text Solution

    |

  2. The angle between the lines 3x^(2)+7xy+2y^(2)+5x+5y+2=0 is given by

    Text Solution

    |

  3. The equation xy+a^2=a(x+y) represents

    Text Solution

    |

  4. If ax^(2)-y^(2)+4x-y=0 represents a pair off lines then a=

    Text Solution

    |

  5. If the equation kxy+10x+6y+4=0 represents a pair of lines then : k=

    Text Solution

    |

  6. The equation x^(2)+kxy+y^(2)-5x-7y+6=0 represents a pair of straight l...

    Text Solution

    |

  7. The point of intersection of lines represented by x^(2) -y ^(2) ...

    Text Solution

    |

  8. If 2x^(2)-10xy+2 lamday^(2)+5x-16y-3=0 represents a pair of straight l...

    Text Solution

    |

  9. Let L be the line joining the origin to the point of intersection of t...

    Text Solution

    |

  10. The line 5x+y-1=0 coincides with one of the lines given by 5x^(2)+xy-k...

    Text Solution

    |

  11. The angle between the lines 3x^(2)+7xy+2y^(2)+5x+5y+2=0 is given by

    Text Solution

    |

  12. The angle between the lines in x^2-xy-6y^2-7x+31y-18=0 is

    Text Solution

    |

  13. If the angle between the pair of straight lines represented by the equ...

    Text Solution

    |

  14. If the angle between the two lines represented by 2x^(2)+5xy+3y^(2)+6x...

    Text Solution

    |

  15. The acute angle formed between the lines joining the origin to the poi...

    Text Solution

    |

  16. The straight lines joining the origin to the points of intersection of...

    Text Solution

    |

  17. If the lines joining the origin and the point of intersection of curve...

    Text Solution

    |

  18. The pair of straight lines joining the origin to the points of interse...

    Text Solution

    |

  19. The orthocenter of the triangle formed by the lines x+y=1 and 2y^(2)-x...

    Text Solution

    |

  20. Joint equation of the diagonals of the square formed by the pairs of l...

    Text Solution

    |