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The roots of the equation |(x-1,1,1),(1,...

The roots of the equation `|(x-1,1,1),(1,x-1,1),(1,1,x-1)| = 0` are

A

1,2

B

`-1, 2`

C

1, -2

D

`-1, -2`

Text Solution

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The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 9-Mathematics
  1. If A = [[1,1,1],[1,1,1],[1,1,1]], A^(2) =

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  2. If omega is a cube root of unity |(1, omega, omega^(2)),(omega, omega^...

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  3. The roots of the equation |(x-1,1,1),(1,x-1,1),(1,1,x-1)| = 0 are

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  4. The inverse of [[3, -2],[-7,5]] is

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  5. From the matrix equation AB = AC we can conclude B = C provided

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  6. Let A = [[1,2],[0,1]]. Then A^(n) =

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  7. In a triangle ABC if a = 2, B = 60^(@) and C = 75^(@), then b =

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  8. If tan^(-1) 2x + tan^(-1) 3x = (pi)/(4), then x =

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  9. The general solution of tan 2 theta tan theta = 1 is theta =

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  10. cos^(-1).(2)/(sqrt(5)) + tan^(-1).(1)/(3) =

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  11. (1 + i)^(5) + (1 - i)^(5) =

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  12. The smallest integer n such that ((1 + i)/(1-i))^(n) = 1 is

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  13. cos[tan^(-1) {sin(cot^(-1) x)}] =

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  14. The general value of theta which satisfies the equation (cos theta + i...

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  15. The length of the tangent from the point (1, -4) to the circle 2x^(2) ...

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  16. For the circles x^(2) + y^(2) - 2x + 3y + k = 0 and x^(2) + y^(2) + 8x...

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  17. The equation to the parabola with focus (2, 0) and the directrix x + 3...

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  18. If 2y = 5x + k is a tangent to the parabola y^(2) = 6x then k =

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  19. The length of the latus - rectum of the ellipse (x^(2))/(25) + (y^(2))...

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  20. P is any point on the ellipse 9x^(2) + 36y^(2) = 324 whose foci are S ...

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