Find the period of the trigonometric function f(x) = 2cos(3x) - sin(4x) + tan(2x).
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What is the surface area of a rectangular prism with length 10, width 6, and height 8?
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Math question: What is the smallest value of n in Fermat's Theorem (n > 2) where there exist no positive integers a, b, and c satisfying a^n + b^n = c^n ?