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Solve the following equations by inverse...

Solve the following equations by inverse method :
`2x + y = 5, 3x + 5y = - 3`

Text Solution

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The correct Answer is:
x = 4, y = -3
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-QUESTION BANK 2021-MATRICES
  1. If A = [(0,1),(2,3),(1,-1)]and B = [(1,2,1),(2,1,0)], then find (AB)^(...

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

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  3. Solve the following equations by inverse method : 2x + y = 5, 3x + 5...

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  4. If A=[{:(1," 2",-1),(3,-2," 5"):}] , then R(1) harr R(2) and C(1) ra...

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  5. Three chairs and two tables costs Rs. 1850. Five chairs and three tabl...

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  6. v36.3

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  7. Find the adjoint of matrix A = [(2,0,-1),(3,1,2),(-1,1,2)]

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  8. Find the matrix X such that {:((1,2,3),(2,3,2),(1,2,2)):} X = {:((2,2...

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  9. If A=[[sectheta, tantheta, 0], [tantheta, sectheta, 0], [0, 0, 1]], th...

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  10. Transform [(1,2,4),(3,-1,5),(2,4,6)] into an upper triangular matrix b...

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  11. If A = [(1,0,1),(0,2,3),(1,2,1)]and B = [(1,2,3),(1,1,5),(2,4,7)], the...

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  12. Using elementary transformations, find the inverse of the matrix[2-3 ...

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  13. The inverse of the matrix [(1,0,0),(3,3,0),(5,2,-1)] is

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  14. Solve the following equations by the invers method : x + y + z = ...

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  15. If three numbers are added , their sum is 2 . If two times the seco...

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  16. Find the inverse of the matrix {:((1,0,1),(0,2,3),(1,2,1)):} by using...

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  17. If A = [(x,0,0),(0,y,0),(0,0,z)] is a non-singular matrix, then find A...

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  18. Find the inverse of A =[[costheta,-sintheta,0],[sintheta,costheta,0],[...

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  19. If A = [(1,1),(1,2)], B = [(4,1),(3,1)], and C = [(24,7),(31,9)], then...

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  20. If A = {:((1,-1,2),(3,0,-2),(1,0,3)):}, verify that A (adj A) = |A|* I...

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