Math question: What is the limit of sin(x) as x approaches 0?
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What is the derivative of f(g(x))^h(x) with respect to x, where f(x) represents a differentiable function, g(x) and h(x) are also differentiable functions?
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Math question: Find the hyperbolic sine (sinh) of the natural logarithm (ln) of x, given x is a positive real number.