# Linear Algebra Questions - Another approach to the proof of the Cauchy-Schwarz Inequality is

**Culbert**

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Another approach to the proof of the Cauchy-Schwarz Inequality is suggested by the

figure below, which shows that in R2 or R3, ||proj u(v) || <= ||v||. Show that this is

equivalent to the Cauchy- Schwarz Inequality. * The R2 and R3 represent all real

numbers in 2 and 3 dimension if that is unclear.

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- 6 years ago

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