1)f´(x)=2x+3
2)F´(x)=14xˇ6-4/(xˇ2)
3)F(x)=xˇ4-2xˇ2-3, F´(x)=4xˇ3-4x
4)F(x)=2.Vx -5xVx=2.Vx-5.xˇ(3/2)=2.xˇ(1/2)-5.xˇ(3/2)
F´(x)=2.(1/2).xˇ(-1/2) - 5.(3/2).xˇ(1/2)=1/Vx - 15/2.Vx
5)F(x)=(2x-3)/(x+2)
F´(x) = (2.(x+2)-(2x-3).1)/(x+2)ˇ2=(2x+4-2x+6)/(x+2)ˇ2=
= 10/(x+2)ˇ2
f(x)=-3xˇ5, f´(x)=-15.xˇ4, f´(3)=-15.3ˇ4=-15.81=-1215