- #1

Vali

- 48

- 0

f(x)= -2(x+1)/(x-1)^2

x is from [0,1)U(1,3]

I need to find the image of the function which is (-infinity, -2].I tried with the derivative but when I solve f'(x)=0 I obtain x=-3 which is not from x interval.I don't know how to continue.