Hi, I'm having some difficulty with this problem. I need to project a point in R2 to the line x2 = x1 (sqrt(3)) and then rotate it 30 degrees clockwise.
I believe the 2x2 matrix to map it is just
sqrt(3) 0
0 1
and to rotate a vector clockwise as opposed to counter clockwise...
matrix A was
2 8 4 16
1 1 2 2
1 -1 2 -2
I was able to reduce it to
1 0 2 0
0 1 0 2
0 0 0 0
but I'm not sure how to match it up to b, which is
-1
9
5
17
I'm having trouble with Ax=b matrices. I get really confused when dealing with matrices that have a different number of rows from columns. An example is this problem:
(A is a 3x2 matrix)
A =
3 1
4 2
-5 -1...