Given that
\[2^{-\frac{3}{2} + 2 \cos \theta} + 1 = 2^{\frac{1}{4} + \cos \theta},\]compute $\cos 2 \theta.$
Question:
Given that
\[2^{-\frac{3}{2} + 2 \cos \theta} + 1 = 2^{\frac{1}{4} + \cos \theta},\]compute $\cos 2 \theta.$
Answer:
Let's think step by step.

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Given that
\[2^{-\frac{3}{2} + 2 \cos \theta} + 1 = 2^{\frac{1}{4} + \cos \theta},\]compute $\cos 2 \theta.$
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