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Question 1: If P is of order 2 x 3 ...

Question 1: If P is of order 2 x 3 and Q is of order 3 x 2, then P Q is of order , 2 x 3 ,2 x 2 , 3 x 2 , 3 x 3,

A

`2xx3`

B

`2xx2`

C

`3xx2`

D

`3xx3`

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-MATRICES-Assignment (Section - A) Objective Type Questions (One option is correct)
  1. The number of all possible matrices of order 2xx3 with each entry 1 or...

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  2. If A is of order mxxn and B is of oredr pxxq, then AB is defined only ...

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  3. Question 1: If P is of order 2 x 3 and Q is of order 3 x 2, then ...

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  4. If A={:[(0,0,0),(0,0,0),(1,0,0)]:}, then

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  5. If A is a square matrix, then A is symmetric, iff

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  6. If A is a square matrix, then A is skew symmetric if

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  7. If A is any square matrix, then

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  8. If A and B are symmetric matrices of the same order then (AB-BA) is al...

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  9. Let A be a square matrix. Then which of the following is not a symmetr...

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  10. Each diagonal elemetn of a skew symmetric matrix is (A) zero (B) negat...

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  11. If A={:[(1,0),(1,1)]:},"then "A^(2008) is equal to

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  12. If A=[ x y z],B=[(a,h,g),(h,b,f),(g ,f,c)],C=[alpha beta gamma]^T th...

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  13. if for a matrix A, A^2+I=O, where I is the identity matrix, then A equ...

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  14. about to only mathematics

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  15. If {:A+B=[(1,0),(1,1)]andA-2B=[(-1,1),(0,-1)]:}," then "A=

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  16. {:[(7,1,2),(9,2,1)]:}{:[(3),(4),(5)]:}+2{:[(4),(2)]:} is equal to

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  17. If f(x)=x^(2)+4x-5andA={:[(1,2),(4,-3)]:}, then f(A) is equal to

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  18. Multiplicative inverse of the matrix [[2,1],[7,4]] is (i) [[4,-1],[-7...

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  19. If the matrix A is such that ({:(1,3),(0,1):})A=({:(1,1),(0,-1):}), t...

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  20. If A is a square matrix such that A^2=I , then A^(-1) is equal to A...

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