What is the value of sinh(2) + cosh(3) - tanh(4) + coth(5) at x = 0?
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What is the equation of an ellipse with a horizontal major axis and center at (h, k), semi-major axis a, and semi-minor axis b?
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Math question: In ΔABC and ΔDEF, if angle A = angle D, angle B = angle E, and angle C = angle F, does this imply that the two triangles are congruent? Justify your answer.