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If A=({:(a,-2),(-2,a):}) and |A|^(3)=125...

If `A=({:(a,-2),(-2,a):})` and `|A|^(3)=125`, then `a` equals…………

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The correct Answer is:
`+-3`
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ACCURATE PUBLICATION-DETERMINANTS-Type-II (Fill in the blanks questions)
  1. If |{:(2x,-3),(5,x):}|=|{:(4,-3),(5,8):}|, then positive value of x is...

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  2. If |{:(x,3),(12,x):}|=|{:(6,3),(12,6):}|, then x is equal to ……….

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  3. If A=({:(a,-2),(-2,a):}) and |A|^(3)=125, then a equals…………

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  4. If A is a square matrix and |A|=2, then the value of |A A'| , where A'...

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  5. A matrix A of order 3xx3 is such that |A|=4. Then the value of |2A| is...

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  6. A matrix A, of order 3xx3, has determinant 4. Then the value o |3A| is...

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  7. The value of the determinant of a matrix A of order 3xx3 is 4. Then th...

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  8. If A= diag (5, 2, l) then det A is equal to :

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  9. If A is a square matrix of order 3 and |3A| = k|A|, then write the val...

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  10. The value of the det. |[x+y,y+z,z+x],[z,x,y],[1,1,1]| is

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  11. The value of |{:(1,p,q+r),(1,q,r+p),(1,r,p+q):}| is……

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  12. If area of a triangle is 4 sq. units with vertices (k,0), (4,0) and (0...

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  13. A is a square matrix of order 3 and |A|=7, then the value of |adjA| is...

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  14. If A is non-singular matrix of order 3 and |A|=7 then |adjA| equals………...

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  15. If |A|=2, where A is a 2xx2 matrix, then |adjA| is …………

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  16. If A=[{:(3,2),(1,7):}], then A(adjA) equals……..

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  17. If A=[{:(3,2),(1,9):}], then A(adjA) equals……..

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  18. Select the Correct Option If A is an invertible matrix of order 2, the...

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  19. If x. y, z are non- real number", then the inverse of matrix A = [[x,0...

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  20. If A,B,C are the angles of a triangle, then Delta=|{:(sin^(2)A, cotA...

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