Question

помогите ,производная))))))))))

Answer 1

f '(x)=(2sqrt(x^2+1) - (2x+1)*1/(2sqrt(x^2+1))*2x)/(x^2+1)

Answer 2

$f(x)= frac{2x+1}{ sqrt{x^2+1} } \ f'(x)= frac{2-x}{(x^2+1) sqrt{x^2+1} } \ f'( sqrt{3} )= frac{2- sqrt{3} }{8} = frac{1}{4} - frac{ sqrt{3} }{8}$