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Select the Correct Option If A is an invertible matrix of order 2, then det(A^-1) is equal to

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If A is an invertible square matrix of order 2, then |adj. A| is equal to :

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If A is a square matrix of order 2, then det (adj A) is equal to

PRADEEP PUBLICATION-DETERMINANTS-EXERCISE
  1. Fill in the blanks : If cos 2 theta = 0, then |(0, costheta, sinthet...

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  2. Fill in the blanks : Determinant of a skew symmetric matrix of order...

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

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  4. Fill in the blanks : If A is an invertible square matrix, then (A)^-...

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  5. If A is matrix of order 3xx3, then (A^(2))^(-1)=…….

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  6. Fill in the blanks : The determinant of a diagonal matrix is equal t...

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  7. The sum of the products of elements of any row with the co-factors of ...

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  8. If A is matrix of order 3xx3, then |3A|=……….

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  9. Fill in the blanks : If A is a square matrix of order n then det (ad...

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  10. Fill in the blanks : The determinant of a triangular matrix is equal...

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  11. Find the area of the triangle whose vertices are (0,0),(a,0) and (0,b)

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

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  13. Fill in the blanks : If A is an invertible matrix of order nxxn (nge...

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  14. The sum of the products of elements of any row with the co-factors of ...

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  15. Fill in the blanks : If A is a matrix of order 3xx3, then the number...

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  16. Fill in the blanks : If f(x) = |(0,x-1,x-2),(x+1,0,x-3),(x+2,x+3,0)|...

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  17. If x=-9 is root of |{:(x,3,7),(2,x,2),(7,6,x):}|=0, then other two roo...

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  18. Fill in the blanks : If k is a non-zero real number and A is an inve...

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  19. Fill in the blanks : If A and B are invertible matrices of the same ...

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  20. Fill in the blanks : The minimum value of |(1,1,1),(1,1+sintheta,1),...

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