Hi there.(adsbygoogle = window.adsbygoogle || []).push({});

I need help simplifying the following:

|[itex]\sqrt{z^2 -1}[/itex] +z| + |[itex]\sqrt{z^2 -1}[/itex] -z|

What I did was I rewrote z in polar coordinates, but I ran into some difficulties taking the square root of [itex]r^2(cos2θ-sin2θ)-1[/itex].

I also tried rewritting z in exponential form, but also had problems. Help?

**Physics Forums - The Fusion of Science and Community**

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

# Complex identity

Loading...

Similar Threads - Complex identity | Date |
---|---|

I Complex integral | Jun 8, 2017 |

I Complex integral of a real integrand | May 5, 2017 |

Complex number identity | Sep 14, 2011 |

How to determine whether two complex trig equation is identical. | Nov 8, 2003 |

**Physics Forums - The Fusion of Science and Community**