(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find two different 2×2 matrices (other than ±I) such that A.AT = I.

Definition:Iis referring to i^2=-1 axion

AT=Transpose of A

2. Relevant equations

3. The attempt at a solution

Trying to make matrices on paper so that A times the transpose of A gives me -1 in all rows and columns.

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

Dismiss Notice

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: Finding 2 2x2 matrices resulting in -1

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