Multiply [0.763.351.970.285.410.34][0.850.212.080.8]\displaystyle {\left[\begin{array}{cc} -{0.76}&{3.35}\\-{1.97}&{0.28}\\{5.41}&-{0.34}\end{array}\right]}{\left[\begin{array}{cc} -{0.85}&-{0.21}\\{2.08}&-{0.8}\end{array}\right]} if possible.
If not possible, enter DNE.