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If A is a 2xx3 matrix and AB is a 2xx5 m...

If A is a `2xx3` matrix and AB is a `2xx5` matrix. Then B must be a

A

`3xx5` matrix

B

`3xx3` matrix

C

`3xx2` matrix

D

`5xx2` matrix

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PUNEET DOGRA-MATRIX-PREV YEAR QUESTIONS
  1. A square matrix A is called orthogonal if.

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  2. If A=({:(1,2),(2,3):}) and A^(2) -KA-I(2)=O," where "I(2) is the 2xx2 ...

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  3. If A is a 2xx3 matrix and AB is a 2xx5 matrix. Then B must be a

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  4. What is the inverse of the matrix A=({:(cos theta, sin theta ,0),(- ...

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  5. If A=[{:(4i-6,10i),(14i,6+4i):}] and K=(1)/(2i), where i= sqrt(-1). Th...

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  6. If A is a square matrix, then the value of adj A^(T)-(adj A)^(T) is eq...

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  7. If a,b,c are non-zero real numbers, then the inverse of the matrix A=[...

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  8. The ad joint of the matrix A= [{:(1,0,2),(2,1,0),(0,3,1):}] is :

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  9. If A=({:(-2,2),(2,-2):}), then which one of the following is correct ?

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  10. The matrix A has x rows and x+5 columns The matrix B has y rows and 11...

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  11. If alpha and beta are the roots of the equation 1+x+x^(2)=0, then the ...

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  12. If A=[{:(cos alpha, sin alpha),(-sin alpha, cos alpha):}], then what i...

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  13. The equations x+2y+3z=1 2x+y+3z=1 5x+5y+9z=4

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  14. A=[{:(x+y, y),(x, x-y):}](2) B=[{:(3),(-2):}] and C=[{:(4),(-2):}], If...

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  15. If A=[{:(cos theta,sin theta),(-sin theta,cos theta):}], then what is ...

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  16. What is the order of : [xyz] [{:(a,h,g),(h,b,f),(g,f,c):}][{:(x),(y),(...

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  17. If A=[{:(1,0),(0,1):}]. Then the value of A^(4) is :

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  18. What is [x y z ] [{:(a,h,g),(h,b,f),(g,f,c):}] equal to ?

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  19. If m=[{:(1,0),(0,1):}] and n=[{:(0,1),(-1,0):}], then what is the valu...

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  20. If f(x)=[{:(cos x, -sin x, 0),(sin x, cos x, 0),(0,0,1):}], then which...

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