BITSAT 2019 Slot 2 Solved Paper

Section: Mathematics
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Question : 138 of 150
 
Marks: +1, -0
Let a,b,c∈R+ and the system of equations (1−a)x+y+z=0,x+(1−b)y+z=0 andx+y+(1−c)z=0 has infinitely many solutions, the minimum value of ' abc ' is
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