[cosθ−sinθsinθcosθ]\left[\begin{array}{rr}\cos \theta & -\sin \theta \\\sin \theta & \cos \theta\end{array}\right][cosθsinθ−sinθcosθ]
[cosθsinθ−sinθ−cosθ]\left[\begin{array}{rr}\cos \theta & \sin \theta \\-\sin \theta & -\cos \theta\end{array}\right][cosθ−sinθsinθ−cosθ]
[cosθ−sinθ−sinθcosθ]\left[\begin{array}{rr}\cos \theta & -\sin \theta \\-\sin \theta & \cos \theta\end{array}\right][cosθ−sinθ−sinθcosθ]
[−cosθsinθ−sinθ−cosθ]\left[\begin{array}{rr}-\cos \theta & \sin \theta \\-\sin \theta & -\cos \theta\end{array}\right][−cosθ−sinθsinθ−cosθ]