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The sum of three numbers is 6. If we mul...

The sum of three numbers is 6. If we multiply third number by 3 and add second number to it, we get 11. By adding first and third numbers we get double of the second number. Represent it algebraically and find the numbers using matrix method.

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JMD PUBLICATION-Determinants-Exercise
  1. If [[2x , 5], [4,2]] is singular, then x =

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  2. If |[[x,2],[18,x]]|=|[[6,2],[18,6]]|, then x is equal to:

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  3. if A=[[m,-2 ] ,[-2,m]] and |A|^2 =25 , then m=

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  4. Let |A| be square matrix of order 3 and |A| = 6, then |2A| =

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  5. Let A be a non-singular matrix of order 3 xx 3. Then I adj. A I is equ...

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  6. If A and B are square matrices of order 3 x 3 such that |A|=2,|B|=3, t...

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  7. If A be a matrix of order 4 x 4 and |A| =20, then |A^-1| =

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  8. If A =[[1,3],[2,4]] ,then A.(Adj. A) =

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  9. If A is non-singular matrix of order 3 and |A|=4 then |Adj. (Adj. A)| ...

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  10. Fill In the blanks : If A is square matrix of order 3 and |A| = 5, the...

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  11. Fill In the blanks : If A is of order 4 x 4 and |A| = 3, then |A^-1|=

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  12. Fill In the blanks : If A is square matrix of order 3 and |A| = 6, the...

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  13. Fill In the blanks : If [[x,4] , [9,x] = [5,3] , [4,5]] then x=

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  14. State true/false:If A is square matrix of order 3 and |A| = 4 then |3A...

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  15. State true/false:If A is square matrix of order 4 and |A|= 5 then |Adj...

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  16. State true/false:IF A is square matrix then | A^-1| = 1/|A|

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  17. Solve by matrix method 3x - 4y + 2z = -1 , 2x + 3y +5z = 7 , x+ z =2

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  18. Solve by matrix method (2/x) + (3/y) + (10/z) =4, (4/x) - (6/y) + (5/z...

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  19. The sum of three numbers is 6. If we multiply third number by 3 and ad...

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  20. Solve by matrix method 3x + 2y + z= 1000, 4x + y+ 3z = 1500, and x + y...

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