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The inverse of the matrix [[1, 2, 3], [1...

The inverse of the matrix `[[1, 2, 3], [1, 1, 5], [2, 4, 7]]` is

A

`[[-13, -2, 7], [3, -1, -2], [2, 0, -1]]`

B

`[[13, 2, -7], [-3, -1, 2], [-2, 0, 1]]`

C

`[[13, 2, -7], [-3, -1, 2], [-2, 0, -1]]`

D

`[[13, 2, -7], [-3, -1, 2], [-2, -2, 2]]`

Text Solution

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The correct Answer is:
B
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NIKITA PUBLICATION-MATRICES-MULTIPLE CHOICE QUESTIONS
  1. If A=[[1, 0, 0], [a, 1, 0], [b, c, 1]], then A^(-1)=

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  2. The inverse of the matrix [[1, 2, 3], [0, 2, 4], [0, 0, 5]] is

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  3. The inverse of the matrix [[1, 2, 3], [1, 1, 5], [2, 4, 7]] is

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  4. The inverse of the matrix [[1, 0, 1], [0, 2, 3], [1, 2, 1]] is

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  5. The inverse of the matrix [[2, -1, 1], [-1, 2, -1], [1, -1, 2]] is

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  6. The inverse of the matrix [[0, 1, 2], [1, 2, 3], [3, 1, 1]] is

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

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  8. The inverse of the matrix [[2, -3, 3], [2, 2, 3], [3, -2, 2]] is

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

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  10. The inverse of the matrix [[1, 2, -2], [0, -2, 1], [-1, 3, 0]] is

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  11. The inverse of the matrix [[3, 2, 6], [1, 1, 2], [2, 2, 5]] is

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  12. The inverse of the matrix [[1, 2, 3], [-1, 1, 2], [1, 2, 4]] is

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  13. The inverse of the matrix [[costheta, -sintheta, 0], [sintheta, costhe...

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  14. If F(alpha)=[[cosalpha, -sinalpha, 0], [sinalpha, cosalpha, 0], [0, 0,...

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  15. Then inverse of the matrix [[1, 0, 0], [0, costheta, sintheta], [0, si...

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

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  17. A=[[3, 2, 6], [1, 1, 2], [2, 2, 5]], B=[[1, 2, -2], [-1, 3, 0], [0, -2...

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  18. If A=[[1, 0, 0], [0, 1, 1], [0, -2, 4]] and A^(-1)=(1)/(6)(A^(2)+cA+dI...

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  19. If A=[[2, 2, 1], [1, 3, 1], [1, 2, 2]], and A^(-1)+(A-5I)(A-I)^(2)=

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  20. If A=[[1, 2, 2], [2, 1, 2], [2, 2, 1]] and A^(-1) exist and not equal ...

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