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Find where lim x->a f(x)=±∞

* factor/reduce f(x) and set denominator = 0

* remember ln x has VA at x=0

It's very important that you remember to factor FIRST before setting your denominator = 0. If a factor in the denominator crosses out with a factor in the numerator, then your function has a HOLE there and not a vertical asymptote.

* factor/reduce f(x) and set denominator = 0

* remember ln x has VA at x=0

It's very important that you remember to factor FIRST before setting your denominator = 0. If a factor in the denominator crosses out with a factor in the numerator, then your function has a HOLE there and not a vertical asymptote.