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Jow

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**1. Another approach to the proof of the Cauchy-Shwarz Inequality is suggested by figure 16 (sorry, I don't have the image), which shows that, in ℝ2 or ℝ3, llproj[itex]_u{}[/itex]**

**v**ll ≤ ll**v**ll. Show that this inequality is equivalent to the Cauchy-Schwartz Inequality.**2. Cauchy-Schawrtz Inequality: l**

**u**•**v**l ≤ ll**u**ll ll**v**ll**3. I substituted proj[itex]_u{}[/itex]****v**with (**u**•**v**/**u**•**u**)**u**but I can't think of what to do next.
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