What is the length of the side opposite a 40° angle in a triangle with side lengths 5, 8, and 10?
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What is the derivative of cos(2x) -4sin(3x) ?
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Question: Determine if two triangles are congruent with the given information: ΔABC ≅ ΔDEF. Angle A = 40°, side BC = 8cm, Angle D = 40°, and side EF = 8cm.