I'm having trouble with the following limit:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\lim_{x \rightarrow 0} \frac{1 - \sqrt{1 - 4x^2}}{x^2}[/tex]

At the back of the book (Apostol Volume I), it says the answer is 1/2, but I get 2. Can anyone clarify?

Thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Trouble with the following limit

**Physics Forums | Science Articles, Homework Help, Discussion**