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|(x,p,q),(p,x,q),(p,q,x)|=...

`|(x,p,q),(p,x,q),(p,q,x)|=`

A

`(x-p)(x-q)`

B

`(x-p)(x-q)(x+p+q)`

C

`(x-p)(x+p+q)`

D

`(x-q)(x+p+q)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-MATRICES -DETERMINANTS-PRACTICE EXERCISE
  1. If |{:(1+x,2,3),(1,2+x,3),(1,2,3+x):}|=0 then x =

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  2. |(-a^(2),ab,ac),(ab,-b^(2),bc),(ac,bc,-c^(2))|=

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  3. |(x,p,q),(p,x,q),(p,q,x)|=

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  4. |{:(logx,logy,logz),(log2x,log2y,log2z),(log3x,log3y,log3z):}|=

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  5. If D(r)=|(2^(r-1),2(3^(r-1)),4(5^(4-1))),(x,y,z),(2^(n)-1,3^(n)-1,5^(n...

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  6. The determinant Delta=|(a,a+b,a+2b),(a+2b,a,a+b),(a+b,a+2b,a)|=

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  7. If |((a^(2)+b^(2))//c, c, c),(a,(b^(2)+c^(2))//a,a),(b,b,(c^(2)+a^(2))...

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  8. |(a^(2)+2a,2a+1,1),(2a+1,a+2,1),(3,3,1)|

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  9. If A+B+C=pi then |{:(tan(A+B+C),tanB,tanC),(tan(A+C),0,tanA),(tan(A+B)...

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  10. |(sin^(2)x,cos^(2)x,1),(cos^(2)x,sin^(2)x,1),(-10,12,2)|=

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  11. |(cos (alpha+beta),-sin (alpha+beta),cos 2 beta),(sin alpha, cos alpha...

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  12. If |{:(a,b,c),(b,c,a),(c,a,b):}|^(x)=|{:(2bc-a^(2),c^(2),b^(2)),(c^(2)...

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  13. If a="cos"(4pi)/3+I"sin"(4pi)/3,then |(1,1,1),(1,a,a^(2)),(1,a^(2),a)|...

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  14. If A+B+C=pi then the value of |(sin(A+B+C), sinB, cosC),(-sinB,0,tanA)...

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  15. If a,b,c are different and |(0,x-a,x-b),(x+a,0,x-c),(x+b,x+c,0)|=0 the...

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  16. Let the three digit number A28, 3B9,62C, where A,B,C are integers betw...

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  17. If f(x)=|(2cosx,1,0),(x-pi//2,2cosx,1),(0,1,2cosx)| then (df)/(dx) at ...

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  18. 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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  19. Statement - I : If |{:(x+1,-3,4),(-5,x+2,2),(4,1,x-6):}|=0 then x=0 ...

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  20. If |{:(5,-3),(a,3):}|=18,|{:(1,0,0),(2,3,4),(5,-6,b):}|=45,|{:(2,1,0),...

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