Math question: Prove that if two triangles have two sides and the included angle of one equal respectively to two sides and the included angle of the other, then they are congruent.
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What is the equation of the hyperbola with the center at (-3, 2), vertical transverse axis with length 4, and eccentricity of 2?
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Math question: What is the slope of the line y = 2x + 3?