Question

найдите производные!!!!

Answer 1

1) $f'(x)=(frac{3x^{2}}{x^{2}+1} )'= frac{6x*(x^{2}+1)-3x^{2}*2x}{(x^{2}+1)^{2}= frac{6x^{3}+6x-6x^{3}}{(x^{2}+1)^{2}}=frac{6x}{(x^{2}+1)^{2}}$

2) $y'(x)=(log_{4}(3x-4))'= frac{3}{(3x-4)*ln4}$

3) $y'=(3x^{2})'=6x$
$y'=(5-2x^{2})'=-4x$