Find the maximum value of the cosine function as x ranges from 0 to Ο/3 radians.
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What are the values of x between 0 and 2Ο for which the tangent function f(x) = tan x is positive?
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What is the smallest positive integer value of n in Fermat's Theorem equation a^n + b^n = c^n, where a, b, and c are integers, satisfying the condition a, b, and c < 100?