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If matric A = {:|(3-2x,x+1),(2,4)| is si...

If matric `A = {:|(3-2x,x+1),(2,4)|` is singular, then x is equal to

A

0

B

1

C

-1

D

-2

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MODERN PUBLICATION-DETERMINANTS-EXERCISE
  1. If determinant A is of order 2xx2 and |A|=3, then the value of |2A| is

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  2. Write the value {:|(x,x+1),(x-1,x)|

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  3. If matric A = {:|(3-2x,x+1),(2,4)| is singular, then x is equal to

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  4. The value of x from the equation {:|(x,2,3),(4,x,1),(x,2,5)|=0 is

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  5. If A is a square matrix of order 3 such that |adjA|=16, then |A| is

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  6. If {:|(2,3),(4,5)| = |(x,3),(2x,5)|, then the value of 'x' is ………..

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  7. The cofactor of a13 in {:|(2,-3,5),(6,0,4),(1,5,-7)| is

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  8. If A= diag (4, 2, 1) then det. A is equal to :

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  9. If a, b, c, are in A.P, then the determinant |[x+2,x+3,x+2a],[x+3,x+4,...

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  10. If a1,a2,a3,……………….. are in A.P., then the value of: {:|(a1,a2,1),(a...

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  11. The system of linear equations: 3x+y-z=2,x-z=1 and 2x+2y+az=5 has un...

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  12. Let I denote the 3xx3 and P be a matrix obtained by rearranging the co...

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  13. If A is matrix of order 3,such that A(adjA)=10I. Then |adjA|=

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  14. Without expanding the determinant at any stage, prove that {:|(x+1,x+2...

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  15. Consider the following statements: (i) If any two rows or coluns of a ...

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

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  17. Let omega ne 1 be a cube root of unity and S be the set of all non-...

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  18. Let M and N be two 3xx3 non-singular skew-=symmetric matrices such t...

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  19. The number of values of k which the linear equations 4x+ky+2z=0 kx...

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  20. The number of values of k, for which the system of equations (k""+""...

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