Home
Class 12
MATHS
Find the value of x from the following: ...

Find the value of `x` from the following: `|[x,4],[ 2 ,2x]|=0`

Promotional Banner

Topper's Solved these Questions

  • DERIVATIVES AS A RATE MEASURER

    RD SHARMA ENGLISH|Exercise All Questions|168 Videos

  • DIFFERENTIABILITY

    RD SHARMA ENGLISH|Exercise All Questions|135 Videos

Similar Questions

Explore conceptually related problems

Find the value of x from the following: [(2x,-y),(5, 3y)]=[(6, 5 ),(3,-2)]

Find the values of x,y,z from the following matrix equation : [{:(x+y,x+y+z),(2x+y,0):}]=[{:(3,6),(5,0):}]

find the values of x, y,z from the following matrix equation : 2[{:(x,y),(z,o):}]=[{:(x,6),(2,0):}]+[{:(4,x+y),(x,0):}]

Find the value of x in each of the following : 1 . 8 : x : : 2 . 4 : 6 . 0

Find the values of x and y from each of the following (i) (x+y,x-2y)=(7,1) (ii) (2x,x+3y)=(4,5)

Find the values of x and y from each of the following matrix equation : (i) [{:(x+y),(x-y):}]=[(3)/(1)](ii) [{:(x+y,7),(0,2x):}]=[{:(-1,7),(0,6):}]

Find the value of x if x^2+5x+6=0

Find the values of x in each of the following : (i) 2^(5x)-:2^x=2^(20) (ii) (2^3)^4=(2^2)^x

Find the values of x , if |[2, 4], [5, 1]|=|[2x,4], [6,x]|

Find the values of x if the points (2x, 2x), (3, 2x + 1) and (1, 0) are collinear.

RD SHARMA ENGLISH-DETERMINANTS-All Questions
  1. Write the cofactor of a(12) in the matrix [[2,-3, 5],[ 6, 0, 4],[ 4, 5...

    Text Solution

    |

  2. If |[2x+5 ,3],[ 5x+2, 9]|=0 , find xdot

    Text Solution

    |

  3. Find the value of x from the following: |[x,4],[ 2 ,2x]|=0

    Text Solution

    |

  4. Write the value of the determinant |[2, 3, 4],[ 5, 6 ,8],[ 6x,9x, 12...

    Text Solution

    |

  5. If |A|=2 , where A is 2xx2 matrix, find |a d j\ A| .

    Text Solution

    |

  6. What is the value of the determinant |[0, 2, 0 ],[2, 3, 4 ],[4, 5 ,6...

    Text Solution

    |

  7. For what value of x is the matrix [[6-x,4],[ 3-x,1]] singular?

    Text Solution

    |

  8. A matrix A of order 3xx3 is such that |A|=4 . Find the value of |2A| .

    Text Solution

    |

  9. Evaluate: |[cos15^@ sin15^@],[sin75^@cos75^@]| .

    Text Solution

    |

  10. If A=[[5, 3, 8],[ 2, 0, 1], [1 ,2 ,3]] . Write the cofactor of the e...

    Text Solution

    |

  11. If |(x+1,x-1),(x-3,x+2)|=|(4,-1),(1,3)|, then write the value of x .

    Text Solution

    |

  12. If |[2x,x+3],[ 2(x+1),x+1]|=|[1, 5],[ 3 ,5]| , then write the value ...

    Text Solution

    |

  13. If |[3x, 7], [-2 , 4]|=|[8, 7], [6, 4]| , find the value of xdot

    Text Solution

    |

  14. If |[2x,5], [8,x]|=|[6,-2], [7, 3]| , write the value of xdot

    Text Solution

    |

  15. If A is square matrix of order 3 matrix, |A| != 0 and |3A|=k|A| , then...

    Text Solution

    |

  16. Write the value of the determinant |[p ,p+1],[p-1,p]| .

    Text Solution

    |

  17. Write the value of |(x+y,y+z,z+x),(z,x,y),(-3,-3,-3)|

    Text Solution

    |

  18. If A=[[costheta,sintheta],[-sintheta,costheta]] , then for any natural...

    Text Solution

    |

  19. The maximum value of |(1,1,1),(1,1+sintheta,1),(1,1,1+costheta)| is

    Text Solution

    |

  20. If x in N and |[x+3,-2],[-3x,2x]|=8, then find the value of xdot

    Text Solution

    |