Y = x (sin ln x - cosln x) найти производную

y' = x' (sinln x - cosln x) + x (sinln x - cosln x) '=

= (sinln x - cosln x) + x (coslnx * ln'x+sinlnx * ln'x) =

= (sin ln x - cosln x) + x (coslnx / x+sinlnx / x) = sinln x - cosln x+coslnx + sinlnx=2sinlnx