# Skew symmetric matrix

by Gavroy
Tags: matrix, skew, symmetric
 P: 232 I am asking for some hints to solve this excercise. Given an invertible skew symmetric matrix $A$, then show that there are invertible matrices $R, R^T$ such that $R^T A R = \begin{pmatrix} 0 & Id \\ -Id & 0 \end{pmatrix}$, meaning that this is a block matrix that has the identity matrix in two of the four blocks and the lower one with a negative sign. I am completely stuck!
 PF Patron HW Helper Sci Advisor Thanks P: 25,474 anyone have a simple method for this?

 Related Discussions Linear & Abstract Algebra 1 Calculus & Beyond Homework 3 Calculus & Beyond Homework 0 General Math 0 Calculus & Beyond Homework 3