In this problem I need to calculate the value of the emitter current (Ie). I know that the answer is 1,3 mA but I don't know how to calculate that. I don't know how to correctly use the β -> ∞ part and I don't understand what Vces is. My thoughts were that, because I know that β = Ic/Ib, we can assume that the value of Ib is really really small. We also know that Ie = Ib + Ic so because we assume that Ib is really small we can say that Ie = Ic. That is where I don't know how to proceed.