Find the value of sinh(3) - cosh(4) divided by tanh(2), where sinh(x) denotes the hyperbolic sine function, cosh(x) denotes the hyperbolic cosine function, and tanh(x) denotes the hyperbolic tangent function.
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Find the derivative of f(x) = sin(x^3) * cos(2x) using the chain rule.
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What is the measure of an angle formed by a perpendicular bisector and a side of a triangle?