Question

y=0.5ctgx в точке x0=Пи/3

Answer 1

cotg pí/3 = V3/3
0,5.V3/3=V3/6
y=0,5cotg pí/3 ,y´=0,5. (-1/sinˇ2x)=-0,5/sinˇ2x
sin(pí/3)=V3/2
y´(pí/3) = -0,5/(3/4)=-0,5.4/3 = -2/3