Homework Statement
I solved this following problem but I am not sure whether I did this right: convert
(1/(2^j)) to cartesian form.
Homework Equations
The Attempt at a Solution
re^j\theta = a+jb
a=r cos \theta= cos -\pi/2
b= sin -\pi/2 = -1
1/(2^j) = 2^-j...
Homework Statement
I have trouble solving this following problem: Find a unit vector parallel to this equation 2x-z=4.
The answer is supposed to come out as (2x+4z)/(square root of 20). It would be great if someone can show me how to get this answer.
Homework Equations
The...