![A^2 = \left[\begin{array}{cc}ab&b^2\\-a^2&-ab\end{array}\right] \cdot\left[\begin{array}{cc}ab&b^2\\-a^2&-ab\end{array}\right]=\left[\begin{array}{cc}a^2b^2-a^2b^2&ab^3-ab^3\\-a^3b+a^3b&-a^2b^2+a^2b^2\end{array}\right]](/tpl/images/0127/2128/98f87.png)
, so the matrix is composed by nothing but zeroes.If a=(ab b2)
(-a2 -ab)
show that a2=0 matrices...
Mathematics, 24.07.2019 12:10 estefanlionel8678
If a=(ab b2)
(-a2 -ab)
show that a2=0 matrices
Answers: 1
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