What is the limit of (2x^3 + 4x^2 - 5x + 3) / (x^2 - 2x + 1) as x approaches 1?
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Math question: Given triangle ABC with sides AC=4 cm, BC=6 cm, and ∠ABC=60°, determine if triangle DEF with sides DE=3 cm, EF=5 cm, and ∠DEF=60° is congruent to triangle ABC.
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Question: What is the equation of a circle with a center at (3, -2) and a radius of 5 units?