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Solve the following equations by inverse...

Solve the following equations by inverse method :
`x + 3y + 3z = 12, x + 4y + 4z = 15, x + 3y + 4z = 13`

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The correct Answer is:
`3, 2, 1`
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-MATRICES-Examples for Practice
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  2. Find the inverse of each of the following matrices : {:((1,5,2),(0,-1...

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

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  4. Find the adjoints of the following matrices : (1) {:((1,3),(-2,4))...

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  5. Find the inverses of the following matrices by adjoint method : (1) ...

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  6. Find the inverse of each of the following matrices, by using adjoint m...

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

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  8. Solve the following equations by reduction method : 2x + 3y = 9, y...

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  9. Solve the following equations by reduction method : x + y = 2, 3x +...

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  10. Solve the following equations by reduction method : 2x - y = -2, 3x...

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

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  12. Solve the following equations by reduction method : x - y + z = 4, 2x ...

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  13. The sum of three numbers is 9 . If we multiply third number by 3 and...

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  14. The sum of three numbers is 6 . When second number is subtracted from ...

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  15. The cost of 2 books, 6 notebooks and 3 pens is Rs. 40. The cost of 3 ...

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  16. Solve the following equations by inverse method : 2x +5y = 1, 3x + ...

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

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  18. Using matrices, solve the following system of equations: x\ -\ y+z...

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  19. Solve the following equations by inverse method : x + 3y + 3z = 12, ...

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  20. Solve the following equations by inverse method : x + z = -1 , y +z ...

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