Math question: What is the limit as x approaches 2 of (2x^2 - 8x + 8) / (x^2 - 4)?
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Question: What is the derivative of sin(x) + cos(2x) - tan⁻¹(3x)?
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Math question: Prove if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the triangles are congruent.