Hey guys I'm having a little trouble with having to sub in something for infinity.

For example like say its 1/square of (x-2) if you were to sub in infinity for that what would it be? Is the answer 0?

Another example is lets say square root of (2+t) does this mean the answer is infinity?

I just want all the kind of scenarios of equations dealing with infinity and what the answer to them would be, can anyone help me with that?