What is the value of x in the equation log(x) = 3.5?
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Find the value of sinh(arccosh((sinh^2(pi/4) + cosh^2(pi/3))/tanh(2.5))), where sinh is the hyperbolic sine function, and arccosh is the inverse hyperbolic cosine function.
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Math Question: "Find the extrema of the function f(x) = x^3 - 6x^2 + 9x - 2 within the interval [0, 5]."