Exercise 1.3.9

Question

Let $\mathrm{W}_{1}, \mathrm{~W}_{3}$, and $\mathrm{W}_{4}$ be as in Exercise 8. Describe $\mathrm{W}_{1} \cap \mathrm{W}_{3}, \mathrm{~W}_{1} \cap \mathrm{W}_{4}$, and $W_{3} \cap W_{4}$, and observe that each is a subspace of $R^{3}$.

Jephian C.-H. Lin · Accepted Answer

We have $W_1 \cap W_3=\{0\}$, $W_1 \cap W_4=W_1$, and $W_3 \cap W_4$ is a line $t(11,3,-1)$.

Exercise 1.3.9

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Exercise 1.3.9

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