What is the norm or $<5,2,-7 >$ ?

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Answer 1 · 2017-01-21T14:31:27

The answer is $=sqrt78$

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

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

Therefore,

$||<5,2,-7>|| =sqrt(25+4+49)=sqrt78$

What is the norm or <5,2,-7 ><5,2,-7 >?