In triangle ABC, angle A measures 50° and angle C measures 70°. Find the measure of angle B's bisector.
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What are the characteristics of the cubic function f(x) = x^3? Are there any points of inflection or local extrema? How many x-intercepts does it have?
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What is the derivative of (sin(3x^2))^2 + e^(2x) - ln(4x) using the chain rule?