Sorry, I'm sure the questions i'm about to ask are simple to all of you out there but I really haven't had an easy time with Calc.

what is the limit as x approaches pi/2 from the left of

(tan x + 3)/tanē x

So I don't get it, when doing limits from the left and right are the procedures the same? Substitute in the limit, and if that becomes indetirminate use l'hospitals rule?

tan (pi/2) +3 would give me 3 and tanē x would give me 0. So i'd have 3/0 and thus this would be undefined and not indetirminate?

I'm really not confident in my answer and I would like to get this stuff down!!

Please help and thank you so much to every person who takes the time to assist me.

This is a no calculator question