How can I show that(adsbygoogle = window.adsbygoogle || []).push({});

[tex]1+z=\sqrt{\frac{1+v/c}{1-v/c}}[/tex]

becomes [tex]z \simeq v/c[/tex] for small velocities? Please give me a hint.

**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!

# Homework Help: How can I show that z = v/c for small velocities

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