(cosθ−sinθ−sinθcosθ)\left(\begin{array}{cc}\cos \theta & -\sin \theta \\-\sin \theta & \cos \theta\end{array}\right)(cosθ−sinθ−sinθcosθ)
(cosθ−sinθsinθ−cosθ)\left(\begin{array}{ll}\cos \theta & -\sin \theta \\\sin \theta & -\cos \theta\end{array}\right)(cosθsinθ−sinθ−cosθ)
(cosθ−sinθsinθcosθ)\left(\begin{array}{cc}\cos \theta & -\sin \theta \\\sin \theta & \cos \theta\end{array}\right)(cosθsinθ−sinθcosθ)
(cosθsinθsinθcosθ)\left(\begin{array}{ll}\cos \theta & \sin \theta \\\sin \theta & \cos \theta\end{array}\right)(cosθsinθsinθcosθ)