GATE Civil Engineering

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Consider the following simultaneous equations (with $c_1$ and $c_2$ being constants):

$3x_1+2x_2=c_1$

$4x_1+x_2=c_2$

The characteristic equation for these simultaneous equation is

- $\lambda^2 – 4 \lambda – 5=0$
- $\lambda^2 – 4 \lambda + 5=0$
- $\lambda^2 + 4 \lambda – 5=0$
- $\lambda^2 + 4 \lambda + 5=0$

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