Home
Class 12
MATHS
If [[x+y] , [x-y]]=[[2,1] , [4,3]] [[1],...

If `[[x+y] , [x-y]]=[[2,1] , [4,3]] [[1],[-2]]` then (x,y)

A

1)(-1,1)

B

2)(1,-1)

C

3)(1,1)

D

4)(2,1)

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MATHEMATICAL REASONING

    HIMALAYA PUBLICATION|Exercise Question Bank|97 Videos

  • MAXIMA AND MINIMA

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|167 Videos

Similar Questions

Explore conceptually related problems

If [[x,1],[-1,-y]]+[[y,1],[3,x]]=[[1,2],[2,1]] , then (x,y) =

Find the value of x and y in [(x+2y, 2),(4, x+y)] - [(3,2),(4,1)] = 0 where 0 is a null matrix.

[[x_(1),y_(1),1],[x_(2),y_(2),1],[x_(3),y_(3),1]] = 0 is the condition that the points (x_(i), y_(j)), i=1,2,3

If x_(1) , x_(2) , x_(3) as well as y_(1), y _(2) , y_(3) are in G.P. with the same common ration, then the points ( x_(1) , y _(1)) , ( x_(2) , y _(2)) and (x_(3) , y _(3))

Let R ={(x,y) : x,y in A, x+y=5} , where A= {1,2,3,4,5}. Then :

If (x - 1, y + 3 ) = (2, x + 4 ) Find the values of x and y .

If (x, y) represents a point on a plane then [[2,-1,3],[1,2,-1],[x,y,1]] = 0 represents

If (x_1,y_1) , (x_2,y_2) and (x_3,y_3) are the vertices of a triangle whose area is k square units, then |{:(x_1,y_1,4),(x_2,y_2,4),(x_3,y_3,4):}|^2 is

Find X, if Y=[(3,2),(1,4)] and 2X+Y=[(1,0),(-3,2)]

HIMALAYA PUBLICATION-MATRICES AND DETERMINANTS-QUESTION BANK
  1. If A= [[1,1,1],[1,1,1],[1 ,1,1]] then A^(2)=

    Text Solution

    |

  2. If A = [[ 2 ,-1] , [ 0 , 1 ]] and B=[[-3],[4]] then A B=

    Text Solution

    |

  3. If [[x+y] , [x-y]]=[[2,1] , [4,3]] [[1],[-2]] then (x,y)

    Text Solution

    |

  4. If A=[[sin theta , cos theta],[-cos theta , -sin theta]] then A^(2)=

    Text Solution

    |

  5. If the order of the matrix A=4xx 3, the order of B=4xx 5 and the order...

    Text Solution

    |

  6. [[x-y, 8], [ x+y, 9]] =[[2,8],[4,9]], then (x, y)

    Text Solution

    |

  7. Let A = [[1,2],[0,1]]. Then A^(n) =

    Text Solution

    |

  8. If A=[[2,3 ],[4,1]], B=[[1,2],[3,1]], then 2 A-3 B is

    Text Solution

    |

  9. If [[x,1],[-1,-y]]+[[y,1],[3,x]]=[[1,2],[2,1]] , then (x,y) =

    Text Solution

    |

  10. If A and B are two square matrices of same order then (A B)^(prime)=

    Text Solution

    |

  11. If A=[(3,5),(2,0)] and B = [(1,17),(0,-10)] then |AB| is equal to

    Text Solution

    |

  12. The matrix [[0, 5,-7], [-5,0,11],[7,-11,0]] is known as

    Text Solution

    |

  13. If in a square matrix A=(a(i j)) we have a(ji)=a(i j) for all i, j the...

    Text Solution

    |

  14. If A= [[4,x+2],[2x-3, x-1]] is symmetric then x=

    Text Solution

    |

  15. If A is a square matrix then A . A^(T) is

    Text Solution

    |

  16. If A+B=[[1,0],[1,1]] and A-2 B=[[-1,1],[0,1]] then A=

    Text Solution

    |

  17. If A=[[-1,2],[-2,1]], B=[[3,4],[2,-1]] and A+2 X=B, then X=

    Text Solution

    |

  18. If A=[(1,-3),(2,k)] and A^(2)-4A+10I=A, then k =

    Text Solution

    |

  19. If 2 A+3 B=[[2,-1,4],[3,2,5]] and A+2 B=[[5,0,3],[1,6,2]] then B=

    Text Solution

    |

  20. If O(A)=2xx3, O(B)=3xx2, and O(C )=3xx3 which one of the following is ...

    Text Solution

    |