Math Question: Find the 3rd higher-order derivative of f(x) = 2x^4 - 5x^2 + 3
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What is the theorem that states if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent?
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What is the limit as x approaches 3 of (5x^2 - 7x + 2) / (x^2 - 9)?