Hello i need help to solve this:
Use gauss jordan elimination to solve for x' and y' in terms of x and y
the matrix is:
cos(theta) -sin(theta) x
sin(theta) cos(theta) y
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So you have
The augmented matrix is
Do you know how to row-reduce that?
This is, by the way, the matrix corresponding to rotation through angle [itex]\theta[/itex]. It has an obvious, easy, inverse that you can use to check your answer.
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