What is the norm or $< 4 , 3 , 9 >$ ?

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Answer 1 · 2016-04-14T15:17:22

$||A||=sqrt106$

$A= <4,3,9>$

$|| A||=sqrt(4^2+3^2+9^2)$

$||A||=sqrt(16+9+81)$

$||A||=sqrt106$

What is the norm or < 4 , 3 , 9 >< 4 , 3 , 9 >?