1. 2/x^3
3.1)72
2)-6/25
3)-2
4)2cos(x)/sin(x)^3
Пошаговое объяснение:
1. y1=lnx+x/x(=1)
y2=1/x
y3=-1/x^2
y4=2/x^3
3.1)y2=12x^2+12x=72
2)y2=-6/(25x^(7/5))=-6/25
3)y2=-1-cos(x)^2/sin(x)^2=-2
4)y2=2cos(x)/sin(x)^3
