Turunan pertama dari fungsi rasional g(x) = (2x + 1) / (x - 3) untuk x ≠ 3 adalah...

Answer and explanation

Correct answer: C. -7 / (x - 3)^2

Gunakan aturan pembagian (u/v)' = (u'v - uv') / v^2. u = 2x + 1 -> u' = 2; v = x - 3 -> v' = 1. g'(x) = [2(x - 3) - 1(2x + 1)] / (x - 3)^2 = [2x - 6 - 2x - 1] / (x - 3)^2 = -7 / (x - 3)^2.

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