Вычислите производные функции. 1) f(x) = cosx ( cosx - 1) , 2) f(x) = sinx (ctg - 1), 3) f(x) = tg x (cosx + 2), 4) f(x) = (4x - 1) sinx
1) f'(x)=(cosx(cosx-1))'=-sinx(cosx-1)+cosx(-sin)
2)f'(x)=(sinx(ctgx-1))'=cosx(ctgx-1)+cosx(-1/sin2x) sinus v kvadrate
3)f'(x)= tg x (cosx + 2)=1/cos2x(cosx+2)+tgx(-sinx)
4) f(x) = (4x - 1) sinx=4sinx+(4x-1)cosx