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