Anis Souames

I would like to know how can you solve calculus test faster ? Should I get stronger at algebra ? Should I learn some silly algebra tricks ? What should I do to improve my current solving time, because even if when I try to speed up, I fall in mistakes most of the time ....

Greetings Everyone :)

Okay, so my problem is that I'm trying to prove that the limit of $x^n/ e^x$ when x tends toward infinity is always 0 without using L hospitals rule ? How can I do that ? Or is it possible to rearrange it as the limit of $x^n * e^x$ when x tends toward minus infinity ?

I have a very quick question can I post it here ?

Hello :)