Home
Class 12
MATHS
If [[2x , 5], [4,2]] is singular, then...

If `[[2x , 5], [4,2]]` is singular, then x =

A

20

B

4

C

5

D

10

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • Continuity and differentiablity

    JMD PUBLICATION|Exercise Exercise|44 Videos

  • DIFFERENTIAL EQUATION

    JMD PUBLICATION|Exercise EXERCISE|31 Videos

Similar Questions

Explore conceptually related problems

If A = [[2x,5],[6,3]] is singular then x^2 =____________

If matric A = {:|(3-2x,x+1),(2,4)| is singular, then x is equal to

If [[2,3],[4,5]]=[[x,3],[2x,5]] , then x =

The number of values of x for which the matrix A=[(3-x,2,2),(2,4-x,1),(-2,-4,-1-x)] is singular, is

For what value of x is the matrix [(2x+4,4),(x+5,3)] a singular matrix ?

From the sum of 4 + 3x and 5 – 4x + 2x^2 , subtract the sum of 3x^2 – 5x and –x^2 + 2x + 5 .

If |[x,3, 6],[ 3, 6,x],[6,x,3]|=|[2,x,7],[x,7, 2],[ 7, 2,x]|=|[4, 5,x],[5,x,4],[x,4, 5]|=0, then x is equal to

The value of x for which the matrix |(-x,x,2),(2,x,-x),(x,-2,-x)| will be non-singular, are

For what value of x is the matrix [(5-x,x+1),(2,4)] singular ?

JMD PUBLICATION-Determinants-Exercise
  1. If [[2x , 5], [4,2]] is singular, then x =

    Text Solution

    |

  2. If |[[x,2],[18,x]]|=|[[6,2],[18,6]]|, then x is equal to:

    Text Solution

    |

  3. if A=[[m,-2 ] ,[-2,m]] and |A|^2 =25 , then m=

    Text Solution

    |

  4. Let |A| be square matrix of order 3 and |A| = 6, then |2A| =

    Text Solution

    |

  5. Let A be a non-singular matrix of order 3 xx 3. Then I adj. A I is equ...

    Text Solution

    |

  6. If A and B are square matrices of order 3 x 3 such that |A|=2,|B|=3, t...

    Text Solution

    |

  7. If A be a matrix of order 4 x 4 and |A| =20, then |A^-1| =

    Text Solution

    |

  8. If A =[[1,3],[2,4]] ,then A.(Adj. A) =

    Text Solution

    |

  9. If A is non-singular matrix of order 3 and |A|=4 then |Adj. (Adj. A)| ...

    Text Solution

    |

  10. Fill In the blanks : If A is square matrix of order 3 and |A| = 5, the...

    Text Solution

    |

  11. Fill In the blanks : If A is of order 4 x 4 and |A| = 3, then |A^-1|=

    Text Solution

    |

  12. Fill In the blanks : If A is square matrix of order 3 and |A| = 6, the...

    Text Solution

    |

  13. Fill In the blanks : If [[x,4] , [9,x] = [5,3] , [4,5]] then x=

    Text Solution

    |

  14. State true/false:If A is square matrix of order 3 and |A| = 4 then |3A...

    Text Solution

    |

  15. State true/false:If A is square matrix of order 4 and |A|= 5 then |Adj...

    Text Solution

    |

  16. State true/false:IF A is square matrix then | A^-1| = 1/|A|

    Text Solution

    |

  17. Solve by matrix method 3x - 4y + 2z = -1 , 2x + 3y +5z = 7 , x+ z =2

    Text Solution

    |

  18. Solve by matrix method (2/x) + (3/y) + (10/z) =4, (4/x) - (6/y) + (5/z...

    Text Solution

    |

  19. The sum of three numbers is 6. If we multiply third number by 3 and ad...

    Text Solution

    |

  20. Solve by matrix method 3x + 2y + z= 1000, 4x + y+ 3z = 1500, and x + y...

    Text Solution

    |