JEE Mains Model Paper 7

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Question : 73 of 90
 
Marks: +1, -0
The set of all values of λ for which the system of linear equations:
2x12x2+x3 = λx1
2x13x2+2x3 = λx2
x1+2x2 = λx3
has a non-trivial solution,
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