How do you find the magnitude <3.5, 12>?

1 Answer
Ratnaker Mehta
Jul 20, 2016

||<3,5,12>||=sqrt178~=13.34.

Explanation:

The magnitude of a vector vecx=(x_1,x_2,x_3) is denoted by

||vecx|| and is defined by,

||vecx||=sqrt(x_1^2+x_2^2+x_3^2)

Hence, ||<3,5,12>||=sqrt(9+25+144)=sqrt178~=13.34.

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