Hint: Let u = k-9. Then write all as an expression as u. Then let u=k. Show ur steps if need be and we can take it from there.
3 Answers · Science & Mathematics · 13/11/2019
f(x) = (x^3)e^(-0.01x) The function is of the form f(x) = u(x)v(x) and the derivative is of the form f'(x) = u'v + uv' ...
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