Math question: In triangle ABC, angle A measures 40 degrees and its bisector divides side BC into segments of 6 cm and 8 cm. Find the length of side AC.
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What is the domain of the function f(x) = sin(x) + cos(x) when x is in radians?
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Math Question: What is the limit as x approaches 5 of [(2x^2 - 3x + 1) / (x - 5)]?