Questions
The system of equations is consistent if
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a
a+b+c=0
b
a+b+c≤0
c
a+b+c≠0
d
a+b+c≥0
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Correct option is A
We have Δ= -2111-2111-2=-24-1-1-2-1+11+2=0 ∴For consistency we must have Δ1=Δ2=Δ3=0 ⇒a11b-21c1-2=0 ⇒a4-1-1-2b-c+1b+2c=0 ⇒3a+b+c=0 ⇒a+b+c=0Similar Questions
The number of matrices whose entries are either and for which the system has exactly two distinct solutions, is
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