Question

Cauchy-Schwarz cannot be applied to vectors.

• A. True
• B. False

Answer 1

The correct option is B False

Cauchy-Schwarz inequality can be applied to vectors.

It states that, if $u$ and $v$ are two vectors then the inner product is true that

$|<u,v>{|}^2\le <u,u>.<v,v>$

Hence, the given statement is false.