Two vectors are given by a = 3.3 x - 6.4 y and b = -17.8 x + 5.1 y. What is the magnitude of a?
The magnitude (length) of a vector in two dimensions is given by:
To find the length of a vector in two dimensions, if the coefficients are
This might be vectors of the form
Interesting side note: for a vector in 3 dimensions, e.g.
In this case, the coefficients are