Math question: How many solutions exist for the equation x^n + y^n = z^n, satisfying Fermat's Theorem, where x, y, z, and n are positive integers each less than 10?
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Question: Find the period of the trigonometric function y = 3sin(4x) - 2cos(2x) within the interval [0, 2π].
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Question: How many sides does a regular heptagon have?