BITSAT 2005 Solved Question Paper

Section: Mathematics

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Question : 7 of 150

Marks: +1, -0

Let the homogeneous system of linear equations px+y+z=0,x+qy+z=0, and x+y+rz=0, where p,q,r≠1, have a non-zero solution, then the value of

1

1−p

+

1

1−q

+

1

1−r

is :

−1
0
2
1

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