Question

Salut!

Cum se calculeaza det A la puterea 10? Pls

Answer 1

iti da doar A la puterea 10?

Answer 2

$det \left[\begin{array}{cc}1&1\\2&2\end{array}\right]=2-2=0 \\ (det(A))^{10}=0 \\ \\ c) B=\left[\begin{array}{cc}2&1\\2&3\end{array}\right] \\ B^t=\left[\begin{array}{cc}2&2\\1&3\end{array}\right] \\ B^*=\left[\begin{array}{cc}3&-1\\-2&2\end{array}\right] \\ B^{-1}= \frac{1}{det(B)}*B^*= \frac{1}{4}*B^*=\left[\begin{array}{cc} \frac{3}{4} &\frac{-1}{4}\\\frac{-1}{2}&\frac{1}{2}\end{array}\right]$