What is $|| < 5 , 3, -3 > ||$ ?

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Answer 1 · 2016-02-27T08:42:02

The norm of a vector $<a,b,c>$

$|| < a , b, c > ||=sqrt(a^2+b^2+c^2)$

Hence

$|| < 5 , 3, -3 > ||=sqrt(5^2+3^2+(-3)^2)=sqrt43=6.56$

What is || < 5 , 3, -3 > || || < 5 , 3, -3 > || ?