Posted by harsh on Wednesday, February 13, 2013 at 12:36pm.
Suppose P is an invertible 3×3 matrix with real entries and P4=2P. Find the determinant of 7P.

math  hehe, Friday, February 15, 2013 at 4:13pm
cheater .
This is not the purpose of this site, nor the one from which you stole this question.