Home
Class 12
MATHS
For matrices A and B, A +B and AB are di...

For matrices A and B, A +B and AB are difined then ……

A

A and B are any matrices

B

A and B are square matrices but not necessary having equal order

C

A and B are square matrices of some order

D

No. of coloumn in A=No. of row in B.

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    KUMAR PRAKASHAN|Exercise TEXTBOOK ILLUSTRATIONS FOR PRACTICE WORK |28 Videos

  • MATRICES

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (Short Answer Type Questions)|48 Videos

  • MATRICES

    KUMAR PRAKASHAN|Exercise PRACTICE WORK |55 Videos

  • LINEAR PROGRAMMING

    KUMAR PRAKASHAN|Exercise PRACTICE WORK|25 Videos

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise Practice Paper - 13 (Section - D (Answer the following questions))|2 Videos

Similar Questions

Explore conceptually related problems

For square matrices A and B , AB=A and BA =B, then prove that A^(2)=AandB^(2)=B .

A is a 3xx4 matrix .A matrix B is such that A'B and BA' are defined . Then the order of B is ……..

For any two matrices A and B , we have ……..

If A is matrix of order mxxn and B is a matrix such that AB^T and B^TA both are defined , then order of matrix B is …………..

if AB = A and BA = B, then

Choose the correct answer in the example no . (18) so that statement becomes true . Matrices A and B will be inverse of each other only if ……..

If A and B are matrices of order 3 and |A| = 5 , |B| = 3, then |3AB| = 27xx5xx3=405 .

Give an example of matrices A,B and C such that AB=AC, where A is nonzero matrix , but BneC .

For the matrices A and B, verify that (AB)'=B'A. (i) A=[{:(1),(3),(6):}],B=[2" "4," "5] (ii) A=[{:(5,3,-1),(2,0,4):}]B=[{:(-3,2),(2,1),(-1,0):}]

If A and B are symmetric matrices of same order , then AB +BA is a ……

KUMAR PRAKASHAN-MATRICES -TEXTBOOK BASED MCQS
  1. U=[2" "-3" "4],V=[{:(3),(2),(1):}] X=[0" "2" "3]and Y=[{:(2),(2),(4)...

    Text Solution

    |

  2. If A is a square matrix then A - A' is a …… matrix.

    Text Solution

    |

  3. For matrices A and B, A +B and AB are difined then ……

    Text Solution

    |

  4. If A=[a" "b],B=[-b" "-a]andC=[{:(a),(-a):}] then out of the following...

    Text Solution

    |

  5. If A(x)=[{:(cosx,-sinx),(sinx,cosx):}] then A((pi)/(2)).A(pi)= ………

    Text Solution

    |

  6. If A=[{:(1,1),(1,1):}] then A^(100) ………

    Text Solution

    |

  7. Matrix [{:(0,5,-7),(-5,0,11),(7,-11,0):}]is a ..... matrix.

    Text Solution

    |

  8. Out of the following which statement is false ?

    Text Solution

    |

  9. A matrix A has x rows and x+5 column . A matrix B has y rows and 11 -...

    Text Solution

    |

  10. P=[{:((2)/(3),3k,a),(-(1)/(3),-4k,b),((2)/(3),-5k,c):}]If PP^(T)=I and...

    Text Solution

    |

  11. C is a skew symmetric matrix of order n. X is a column matrix of order...

    Text Solution

    |

  12. If A^(2)=A then (I+A)^(4)=.........

    Text Solution

    |

  13. If AB=AandBA=B then A^(2)+B^(2)= ………..

    Text Solution

    |

  14. If A is any square matrix then AA' is a ………. Matrix.

    Text Solution

    |

  15. If A and B are square matrices of same order then (A^(-1)BA)^(n)= ………...

    Text Solution

    |

  16. A=[{:(0,1,2),(1,2,3),(3,a,1):}]and A^(-1)=[{:(1/2,-1/2,1/2),(-4,3,c),(...

    Text Solution

    |

  17. [{:((1)/(25),0),(x,(1)/(25)):}]=[{:(5,0),(-a,5):}]^(-2) then x =………..

    Text Solution

    |

  18. [1" "x" "1][{:(1,3,2),(0,5,1),(0,3,2):}][{:(1),(1),(x):}]=0 then x=……...

    Text Solution

    |

  19. A is a 3xx4 matrix .A matrix B is such that A'B and BA' are defined . ...

    Text Solution

    |

  20. P is a 2xx2 matrix . P'=P^(-1) then P=……..

    Text Solution

    |