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Exponential-Trigonometric equation

Algebra Level 3

\[\large 2^x + 2^{-x} = \cos(x) +1 \]

Solve for \(x\) satisfying the equation above.

Bonus: Are there any other solutions?

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Excel in math and science

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It's hard to learn from lectures and videos

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including olympiad champions, researchers, and professionals.

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by Jim chale

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