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rrm74001
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[URGENT] Rotation Matrices
http://e.imagehost.org/0661/Screen_shot_2010-03-09_at_12_37_44_AM.png
Rotation Matrix:
cos(theta) -sin(theta)
sin(theta) cos(theta)
I understand 2a:
cos(pi/4) -sin(pi/4)
sin(pi/4) cos(pi/4)
But I am not sure what 2b is looking for. Please help?
Thank you in advance for your help!
Homework Statement
http://e.imagehost.org/0661/Screen_shot_2010-03-09_at_12_37_44_AM.png
Homework Equations
Rotation Matrix:
cos(theta) -sin(theta)
sin(theta) cos(theta)
The Attempt at a Solution
I understand 2a:
cos(pi/4) -sin(pi/4)
sin(pi/4) cos(pi/4)
But I am not sure what 2b is looking for. Please help?
Thank you in advance for your help!
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