Practice For MAT 130 - Yeah, math, whatever
('(x) = 2x ln (x2) + x2 (2x/x2) = 2x ln(x2) + 2x (e) f(x) = x sin(2x) . You have to use the product rule again: f '(x) = (1)sin(2x) + x cos (2x) 2 (chain rule on last part - derivative of interior 2x is 2) = sin(2x) + 2x cos(2x) (f) g(x) = tan (3x) g '(x) = sec2(3x) * 3 (chain rule - derivative of interior 3x is 3) ................
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