Posted by **rudy** on Saturday, April 19, 2008 at 8:57pm.

lim

x-> -infinity

1/(sqaure root of 4/x^2 plus one)

i don't understan why the answer is 1.

- math -
**Anonymous**, Saturday, April 19, 2008 at 9:11pm
as x approaches infinity, the term 4/x^2 becomes a very small number. So, the formula basically becomes:

1/square root(1), which equals 1.

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