Home
Class 11
MATHS
If the straight lines kx – 5y + 4 = 0 an...

If the straight lines kx – 5y + 4 = 0 and 4x – 2y + 5 = 0 are perpendicular to each other. Find the value of k.

Promotional Banner

Topper's Solved these Questions

  • LOGARITHM

    CENGAGE PUBLICATION|Exercise All Questions|177 Videos

  • PROBABILITY

    CENGAGE PUBLICATION|Exercise All Questions|1 Videos

Similar Questions

Explore conceptually related problems

If the lines 3x + by + 5 = 0 and ax – 5y + 7 = 0 are perpendicular to each other, find the relation connecting a and b.

If the lines y = 3x + 7 and 2y + px = 3 perpendicular to each other, find the value of p

The straight lines x + y = 0 , 5 x + y = 4 and x + 5y = 4 form _

If the straight lines 2x - 3y + 5= 0 and ax + 2y. = 6 are parallel, then the value of a is

The straight lines x+y=0, 5x+y=4 and x+5y=4 form

If the straight lines x+q=0 , y-2 =0 and 3x+ 2y+5=0 are concurrent, then the value of q is-

If the lines 2x + y - 3 = 0 , 5x + ky - 3 = 0 " and " 3x - y - 2 = 0 are concurrent , find the value of k.

If the lines x+(a-1)y+1=0 and 2x+a^2y-1=0 are perpendicular, then find the value of adot

Find the equation of the straight line which passes throught the point of intersection of the straight lines x+y+9=0 and 3x-2y+2=0 and is perpendicular to the line 4x+5y +1=0.

The straight lines 5x-9y-12=0andmx+10y=2 are perpendicular to each other , state which of the following is the value of m:

CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions
  1. If the 11 letters A, B, ..., K denote an arbitrary permutation of he ...

    Text Solution

    |

  2. In how many ways can four people, each throwing a dice once, make a su...

    Text Solution

    |

  3. If the straight lines kx – 5y + 4 = 0 and 4x – 2y + 5 = 0 are perpendi...

    Text Solution

    |

  4. In how many ways can 5 girls and 3 boys be seated in a row so that no ...

    Text Solution

    |

  5. If 9^(th) term of an A.P. is zero, prove that its 29^(th) term is doub...

    Text Solution

    |

  6. In how many ways can four people, each throwing a dice once, make a su...

    Text Solution

    |

  7. Find n ,if(n+1)! =12xx(n-1)!dot

    Text Solution

    |

  8. Three numbers are in AP. If theirsum is 27 and their product is 648. F...

    Text Solution

    |

  9. Find the total number of integers 'n' such that 2 le n le 2000 and ...

    Text Solution

    |

  10. The number of polynomials of the form x^3 + ax^2 + bx + c which are di...

    Text Solution

    |

  11. Find the number of diagonals in a polygon with n sides.

    Text Solution

    |

  12. Find the total number of n -digit number (n >1) having property that n...

    Text Solution

    |

  13. Prove that (n !)^2 < n^n n! < (2n)!, for all positive integers n.

    Text Solution

    |

  14. Find the sum of the series sum(r=1)^n r/((r+1) !)dot

    Text Solution

    |

  15. Find the exponent of 80 in 200!.

    Text Solution

    |

  16. Prove that .^nPr = ^(n-1)Pr + r^(n-1)P(r-1)

    Text Solution

    |

  17. How many ways are there to seat n married couples (ngeq3) around a tab...

    Text Solution

    |

  18. A round-table conference is to be held among 20 delegates belonging fr...

    Text Solution

    |

  19. How many numbers can be formed from the digits 1, 2, 3, 4 when repetit...

    Text Solution

    |

  20. Find the three-digit odd numbers that can be formed by using the digit...

    Text Solution

    |