Find values of \( \lambda \) for which line \( y=x+1, y=\lambda x+2...

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Find values of \( \lambda \) for which line \( y=x+1, y=\lambda x+2 \) and \( y=\left(\lambda^{2}+\lambda-1\right) x+3 \) are con-current.
\( \mathrm{P} \)
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