For the system of linear equations: \(\begin{aligned}x_{1}+2x_{2}+x_{3}&=4\\2x_{1}+x_{2}+5x_{3}&=5\end{aligned}\). Which one is not true?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → \(x_{1}=0,x_{2}=2,x_{3}=1\)
Putting \(x_{1}=0,x_{2}=2,x_{3}=1\)
$x_1+2x_2+x_3=0+2(2)+1$
$=5≠4$
∴ Not, true.