Im working on this problem and got stuck i would appreciate any help...(adsbygoogle = window.adsbygoogle || []).push({});

Let Eij be the n × n matrix with 1 at the (i, j)th place and zero elsewhere.

For a scalar c in K, put S = I + cEij . And let T be the n × n

matrix obtained from the identity matrix as follows. In I replace 1 at

the (i, i)th and (j, j)th entries by zero. Replace zeros at the (i, j)th and

(j, i)th entry by 1. Suppose A is an n × n matrix. Compute SA, AS,

TA, and AT to conclude what does the multiplication on the left or

right by S or T do to the row or columns of A.

robbie

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

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

# Homework Help: Linear Algebra matrix help

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