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Playboycxm
15.11.2019 •
Mathematics
Let v be the vector space of all 2×2 matrices with real entries. let h be the set of all 2×2 idempotent matrices with real entries. is h a subspace of the vector space v? does h contain the zero vector of v?
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Ответ:
Remember, a set
is a subspace of the vector space V if:
1. Observe that
Then![0 \in H](/tpl/images/0376/5113/6dbfc.png)
2. Consider two matrices A and B such that
in H
Observe that
.
Then,![A+B\nsubseteq H](/tpl/images/0376/5113/568ba.png)
Then H is not a subspace of V
Ответ:
1/5 a foot taller
Step-by-step explanation: Basically you just subtract 2/5 from 3/5. That gives you 1/5.