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OpenStudy (mathisfun13):
what degree of rotation is represented in this matrix? matrix[0,-1_1,0]
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OpenStudy (mathisfun13):
270 180 90 or -90
OpenStudy (mathisfun13):
....
OpenStudy (whpalmer4):
Could you clarify the contents of that matrix? 0 -1 -1 0 or 0 -1 1 0 or something else?
OpenStudy (mathisfun13):
the second one
OpenStudy (mathisfun13):
[0 -1 1 0]
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OpenStudy (whpalmer4):
90 degrees appears to be the winner. cos(90 deg) = 0 -sin(90 deg) = -1 sin(90 deg) = 1 cos(90 deg) = 0
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