- Prove that for we have
- For non-zero vectors prove that

*Proof.*Let for .*Proof.*Let for . Then,and

Therefore,

Therefore,

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#
Stumbling Robot

A Fraction of a Dot
#
Prove some facts about vectors in *C*^{n}

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### Point out an error, ask a question, offer an alternative solution (to use Latex type [latexpage] at the top of your comment):

- Prove that for we have
- For non-zero vectors prove that

*Proof.*Let for .*Proof.*Let for . Then,and

Therefore,

Therefore,

In part b you used an unfamiliar rule for dot products in the denominator. I see how Cauchy-Schwarz could be used though…