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For what value of x , the matrix [5-xx+1...

For what value of `x ,` the matrix `[5-xx+1 2 4]` is singular?

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The correct Answer is:
`x=3`
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MODERN PUBLICATION-DETERMINANTS-Examples (FREQUENCY ASKED QUESTIONS)
  1. If A is square matrix of order 3 , with |A|=9, then write the value of...

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  2. For what value of x , the matrix [5-xx+1 2 4] is singular?

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  3. If A and B are invertible matrices of order 3, |A|=2 and |(AB)^(-1)|=-...

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  4. If A=[{:(1,2,3),(2,3,2),(3,3,4):}], find adj.A

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  5. Given A=((2,-3),(-4,7)) compute A^(-1) and show that 2A^(-1)=9I-A

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  6. For the matrix A=[1 1 1 1 2-3 2-1 3] . Show that A^3-6A^2+5A+11\ I3=O ...

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  7. Find the inverse of the matrix : A=[{:(0,1,2),(0,1,1),(1,0,2):}]

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  8. If A=[(1,-2,3),(0,-1,4),(-2,2,1)], find (A')^(-1)

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  9. If A=[2 3 1-4]and B=[1-2-1 3], then verify that (A B)^(-1)=B^(-1)A^(-1...

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  10. If A=[{:(1,3,3),(1,4,3),(1,3,4):}], verify A.(adj.A)=|A|I and find A^(...

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  11. Find the inverse of each of the matrices given below : Computer (A...

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  12. Find A^(-1) if A=|(0,1,1),(1,0,1),(1,1,0)| and show that A^(-1)=(A^(2)...

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  13. x+2y=9 2x+4y=7

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  14. Solve the following system of equations by matrix method : 3x-4y=5 a...

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  15. Using matrices, solve the following system of equations: 4x+3y+3z=6...

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  16. Solve the following system of equations by matrix method : x+y-2=3...

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  17. Using elementary transformations, find the inverse of the matrix A=(8 ...

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  18. If A=[[2,3,4],[1,-1,0],[0,1,2]], find A^(-1). Hence, solve the system...

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  19. If A=[{:(2,3,10),(4,-6,5),(6,9,-20):}], find A^(-1). Using A^(-1), sol...

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  20. Use product [{:(1,-1,2),(0,2,-3),(3,-2,4):}][{:(-2,0,1),(9,2,-3),(6,1,...

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