Find the smallest positive angle $x$ that satisfies $\sin 2x \sin 3x = \cos 2x \cos 3x,$ in degrees.
Question:
Find the smallest positive angle $x$ that satisfies $\sin 2x \sin 3x = \cos 2x \cos 3x,$ in degrees.
Answer:
Let's think step by step.

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18^\circ
Find the smallest positive angle $x$ that satisfies $\sin 2x \sin 3x = \cos 2x \cos 3x,$ in degrees.
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