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If a,b,c are all different and |(1+a^(2)...

If a,b,c are all different and `|(1+a^(2),1+b^(2),1+c^(2)),(a,b,c),(a^(3),b^(3),c^(3))|=0` then `a+b+c=`

A

0

B

abc

C

1

D

`ab+bc+ca`

Text Solution

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-MATRICES-EXERCISE 1B MCQ (DETERMINANTS)
  1. If a,b,c are all different and |(a,a^(3),a^(4)-1),(b,b^(3),b^(4)-1),(c...

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  2. If a,b,c are different and |(a,a^(2),a^(3)-1),(b,b^(2),b^(3)-1),(c,c^(...

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  3. If a,b,c are all different and |(1+a^(2),1+b^(2),1+c^(2)),(a,b,c),(a^(...

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  4. If p+q+r=0 and |(pa,qb,rc),(qc,ra,pb),(rb,pc,qa)|=k|(a,b,c),(c,a,b),(b...

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  5. If Delta=|(1,a,a^(2)),(1,b,b^(2)),(1,c,c^(2))|=k(a-b)(b-c)(c-a) then k...

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  6. If abc!=0 and if |(a,b,c),(b,c,a),(c,a,b)|=0 then (a^(3)+b^(3)+c^(3))/...

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  7. |(1,1,1),(a,b,c),(a^(3),b^(3),c^(3))|=

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  8. Let A=[(5,5 alpha, alpha),(0, alpha, 5 alpha),(0,0,5)] If |A|^(2)=25 t...

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  9. If k gt1, and the determinant of the matrix A^(2), where A=[(k,kalpha,...

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  10. If a!=6,b,c satisfy |(a,2b,2c),(3,b,c),(4,a,b)|=0 then abc

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  11. If a!=6,b,c satisfy |(a,2b,2c),(3,b,c),(4,a,b)|=0 then abc

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  12. If f(x)=|(a,-1,0),(ax,a,-1),(ax^(2),ax,a)| then f(3x)-f(2x)=

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  13. If Delta=|(a,1,1),(1,b,1),(1,1,c)|gt0, then

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  14. If A is a 3xx3 matrix and det(3A)=k(detA) then k=

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  15. If the matrix [(x,4),(2,8)] is singular, then x=

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  16. If the matrix [(x,b,b),(1,1,1),(0,x,a)] is singular, then x=

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  17. If the matrix A=[(8,-6,2),(-6,7,-4),(2,-4,lamda)] is singular one, the...

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  18. If ((1,2,x),(4,-1,7),(2,4,-6)) is a singular matrix, then x=

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  19. If the matrix [(cos theta, sin theta, 0),(sin theta, cos theta, 0),(0,...

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  20. If Delta=|(1, sin theta, 1 ),(-sin theta, 1, sin theta),(-1 , -sin the...

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