Math question:Find the 3rd derivative of f(x) = sin(2x) - ln(x^2) at x = π/4.
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What is the general form of an exponential function and how is it graphed?
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Math question: Find the measure of angle PQR, given that the angle bisector QS divides angle PQR into two congruent angles, and angle PQS measures 45 degrees. (