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The value of |alpha| for which the syste...

The value of `|alpha|` for which the system of equation `alphax+y+z=alpha-1` `x+alphay+z=alpha-1` `x+y+alphaz=alpha-1` has no solutions, is ________.

A

not -2

B

1

C

-2

D

Either -2 or 1

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The correct Answer is:
C
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ARIHANT MATHS ENGLISH-DETERMINANTS -Exercise (Questions Asked In Previous 13 Years Exam)
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  4. If D =|{:(1,1,1),(1,1+x,1),(1,1,1+y):}|"for" " "xne0,yne0 then D is

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  5. Consider the system of equations x-2y+3z=-1 -x+y-2z=k x-3y+4z=1 ...

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  6. Let a,b,c, be any real number. Suppose that there are real numbers x,y...

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  7. Let a,b,c be such that b(a+c)ne 0. If |{:(,a,a+1,a-1),(,-b,b+1,b-1),(,...

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  9. The number of values of k for which the linear equations 4x+ky+2...

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  10. If the trivial solution is the only solution of the system of equation...

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  11. The number of values of k, for which the system of equations (k""+"...

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  12. if alpha, beta , ne 0 " and " f(n) =alpha^(n)+beta^(n) " and " |{:(...

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  13. The set of all values of lambda for which the system of linear equ...

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  14. Which of the following values of alpha satisfying the equation |(1+alp...

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  15. The system of linear equations x+lambday-z=0, lambdax-y-z=0, x+y-lam...

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  16. The total number of distinct x in R for which |{:(x,,x^(2),,...

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  17. Let alpha, lambda , mu in R.Consider the system of linear equations ...

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