-4^3
a^3 r^2
Just add all the letters\numbers and the exponent will be how many of the numbers there are
Answer:
Step-by-step explanation:
The given vector is represented by (2,-1).
This can be represented in general form as (x,y) where x=2 and y=-1.
Magnitude of the vector represented as (x,y) is given by
Evaluating for the given values of x and y,
Length of the vector is