Find the matrix that corresponds to rotating about the origin by an angle of $45^\circ$ clockwise.
Question:
Find the matrix that corresponds to rotating about the origin by an angle of $45^\circ$ clockwise.
Answer:
Let's think step by step.

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\begin{pmatrix} 1/\sqrt{2} & 1/\sqrt{2} \\ -1/\sqrt{2} & 1/\sqrt{2} \end{pmatrix}
Find the matrix that corresponds to rotating about the origin by an angle of $45^\circ$ clockwise.
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