Question

f(x)=x^2+x ln x-3
g(x)=2x+lnx+1​

Answer 1

Răspuns:

$(x ln(x) ) = 1 \times ln(x) + x \times \frac{1}{x} = ln(x) + 1$

$f(x) = 2x + ln(x) + 1$

deci f'(x)=g(x)