Problem 3: For which real values of $\lambda$ do the following vectors form a linearly dependent set in $\mathbb{R}^3$? $v_1 = (\lambda, 1, 1)$, $v_2 = (1, \lambda, 1)$, $v_3 = (1, 1, \lambda)$.
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$$ \begin{vmatrix} \lambda & 1 & 1 \\ 1 & \lambda & 1 \\ 1 & 1 & \lambda \end{vmatrix} = 0 $$ Show more…
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