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Statement I If A=[(a^2+x^2,ab-cx,ac+bx...

Statement I If `A=[(a^2+x^2,ab-cx,ac+bx),(ab+cx,b^2+x^2,bc-ax),(ac-bx,bc+ax,c^2+x^2)] and B[(x,c,-b),(-c,x,a),(b,-a,x)]`, then `|A|=|B|^2` Statement II `A^c` is cofactor of a square matrix A of order n, then `|A^c|=|A|^(n-1)`

A

`Delta_1=Delta_2`

B

`Delta_1=Delta_2^2`

C

`Delta_1=2Delta_2`

D

none of these

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FIITJEE-DETERMINANT-ASSIGNMENT PROBLEMS (OBJECTIVE) LEVEL-I
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  2. If Delta(x)=|{:(4x-4,(x-2)^2,x^3),(8x-4sqrt2,(x-2sqrt2)^2,(x+1)^3),(12...

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  3. Statement I If A=[(a^2+x^2,ab-cx,ac+bx),(ab+cx,b^2+x^2,bc-ax),(ac-bx...

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  4. If a,b,c are even natural numbers, then |{:(a-1,a,a+1),(b-1,b,b+1),(c-...

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  5. If f(x) =|{:(cosx,1,0),(1,2 cosx,1),(0,1,2 cosx):}|, "then" |overset(p...

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  6. If f(x)=|{:(x,cosx,e^(x^2)),(1,2 cosx,1),(0,1,2 cosx):}| then the valu...

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  7. If the expression |{:(x^2+x+3,1,4),(2x^4+x^3+2x+1,2,3),(x^2+x,1,1):}| ...

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  8. The determinant Delta=|{:(a,b,aalpha+c),(b,c,balpha+c),(aalpha+b,balph...

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  9. If alpha,beta & gamma are the roots the equations x^(3)+px+q=0 then th...

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  10. The number of values of k for which the system of the equations (k+1)x...

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  11. The determinant Delta =|(a^2(1+x),ab,ac),(ab,b^2(1+x),bc), (ac,bc,c^2(...

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  12. If alpha , beta and gamma the roots of the equation x^2(px + q) = r(x...

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  13. If the system of equations x+a y=0,a z+y=0 and a x+z=0 has infinite so...

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  14. If A+B+C =pi , then the value of determinant |{:(sin^2A,cotA,1),(sin^2...

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  15. For A=a^2+b^2+c^2,B=ab+bc+ca,(a^3,b^3c^3-3abc)^2 is equal to

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  16. If A, B, C are angle of a triangle ABC, then the value of the determi...

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  17. If the expression |{:(x^2+x+3,1,4),(2x^4+x^3+2x+1,2,3),(x^2+x,1,1):}| ...

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  18. The sum of two non integral roots of |{:(x,2,5),(3,x,3),(5,4,x):}|=0 i...

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  19. |[1,1,1] , [(2^x+2^(-x))^2, (3^x+3^(-x))^2, (5^x+5^(-x))^2] , [(2^x-2^...

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  20. There are three points (a,x) ,(b,y) and (c,z) such that the straight l...

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