What is # || < 4 , 9 , -8 > || #?
1 Answer
Feb 17, 2016
The two vertical lines just mean 'the length of' the vector:
Explanation:
Probably not a lot more explanation is needed. The formula for finding the length of a vector is something you should know because it is used very frequently.
It's probably worth noting that although this is a vector in three dimensions, it is still a square root, not a cube root.