Jawabanmu

2014-03-28T09:14:03+07:00
P =  \left[\begin{array}{ccc}4&-7\\3&-5\end{array}\right]
q =  \left[\begin{array}{ccc}-5&7\\-3&4\end{array}\right]
p dan q saling invers, maka p.q = I =   \left[\begin{array}{ccc}1&1\\1&1\end{array}\right]