Question
Let $A$ be an invertible $n \times n$ matrix and $\vec{v}$ an eigenvector of $A$ with associated eigenvalue $\lambda$.Is $\vec{v}$ an eigenvector of $7 A ?$ If so, what is the eigenvalue?
Step 1
This means that $A\vec{v} = \lambda\vec{v}$. Show more…
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