# What is || <-1, -2, 4 > - < 2, -6, 1 > ||?

Dec 13, 2016

The answer is $= \sqrt{34} = 5.8$

#### Explanation:

Start by the subtraction of the 2 vectors before calculating the modulus.

〈-1,-2,4〉-〈2,-6,1〉=〈-3,4,3〉

The modulus is

∥〈-3,4,3〉∥=sqrt(9+16+9)=sqrt34=5.8