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The number of 3 x 3 non-singular matrice...

The number of 3 x 3 non-singular matrices, with four entries as 1 and all other entries as 0, is:- (1) 5 (2) 6 (3) at least 7 (4) less than 4

A

Less than 4

B

5

C

4

D

Atleast 7

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The correct Answer is:
D
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VMC MODULES ENGLISH-MATRICES AND DETERMINANTS -JEE MAIN ARCHIVE
  1. If omega=1 is the complex cube root of unity and matrix H=|{:(,omega,0...

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  2. Consider the system of linear equations: x(1) + 2x(2) + x(3) = 3 2...

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  3. The number of 3 x 3 non-singular matrices, with four entries as 1 and ...

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  4. Let a be a 2xx2 matrix with non-zero entries and let A^(2)=I, where I ...

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  5. Let a,b,c be such that b(a+c) ne 0. If |{:(a,a+1,a-1),(-b,b+1,b-1)...

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  6. Let A be a 2xx2 matrix Statement -1 adj (adjA)=A Statement-2 abs(a...

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  7. Let A be a 2xx2 matrix with real entries. Let I be the 2xx2 identity...

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  8. Let a,b,c, be any real number. Suppose that there are real numbers x,y...

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  9. Let A be a square matrix all of whose entries are integers. Which on...

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  10. If D =|{:(1,1,1),(1,1+x,1),(1,1,1+y):}|"for" " "xne0,yne0 then D is

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  11. Let A= [[5,5alpha,alpha],[0,alpha,5alpha],[0,0,5]] . If |A^2|...

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  12. If A and B f are square matrices of size nxxn such that A^(2) - B^(2...

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  13. Let A =((1,2),(3,4))and B= ((a,0),(0,b)), a, bin N. Then,

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  14. If A is a square matrix such that A^2-A+l=0, then the inverse of A is

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  15. If a^2+b^2+c^2=-2a n df(x)= |1+a^2x(1+b^2)x(1+c^2)x(1+a^2)x1+b^2x(1+c...

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  16. The system of equations alphax+y+z=alpha-1, x+alphay+z=alpha-1 ...

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  17. if a(1),a(2),…….a(n),……. form a G.P. and a(1) gt 0 , for all I ge 1 ...

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  18. Let A=[(0,0,-1),(0,-1,0),(-1,0,0)] Then only correct statement about t...

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  19. Let A=[(1,-1,1),(2,1,-3),(1,1,1)] and 10 B=[(4,2,2),(-5,0,alpha),(1,-2...

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  20. If the system of linear equations {:(x+2ay+az=0),(x+3by+bz=0),(x+4cy...

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