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If A=[(2,3,1),(1,0,2),(2,1,0)] then the ...

If `A=[(2,3,1),(1,0,2),(2,1,0)]` then the matrix of co-factors of A, is

A

`[(2,1,2),(3,0,1),(1,2,0)]`

B

`[(-2,4,1),(1,-2,4),(6,-3,-3)]`

C

`[(-2,1,6),(4,-2,-3),(1,4,-3)]`

D

`[(-2,-4,1),(-1,-2,-4),(6,3,-3)]`

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The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 4-Mathematics
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  2. If A=[(0,1),(0,2)],B=[(1,2),(0,0)], then AB is equal to

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  3. If A=[(2,3,1),(1,0,2),(2,1,0)] then the matrix of co-factors of A, is

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  4. If B=[(6,7),(8,9)] then B^(-1) is equal to

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  5. If p is a prime integer, the set G={1,2, . . . . P-1} will form an abe...

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  7. (sin^(3)A+sin3A)/(sinA)+(cos^(3)A-cos3A)/(cosA) is equal to

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  8. If costheta=((acosphi+b))/((a+bcosphi)), then the value of tan (theta/...

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  9. If (sinA+sinB=a) and (cosA+cosB=b) then the value of cos(A+B) is equal...

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  10. The value of tan[2" tan"^(-1)(1)/(5)-(pi)/(4)] is equal to

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  11. The value of cot^(-1)9+"cos ec"^(-1)((sqrt(41))/(4)), is equal to

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  12. Value of [2(Cos15^(@)+isin15^(@))]^(6), is equal to

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  13. The solution set of sin^(2)theta=costheta+(1)/(4), in the interval 0le...

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  14. If the equation hxy+gx+fy+c=0(h!=0), represents a pair of straight l...

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  15. The orthocentre of the triangle whose sides are given by equations x=1...

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  16. The points (1,3) and(5,1) are the opposite vertices of a rectangle. Th...

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  17. If angle C of the triangle ABC is right angle and the coordinates of A...

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  18. The number of common tangents to the circles x^(2)+y^(2)-x=0 and x^(2)...

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  20. The focus of the parabola 2y=x^(2)+2x+2 is

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