First, calculate A^T:
A^T = [0, -1, 2; -11, 0, 0; 2, -1, 0]
Next, calculate A A^T:
A A^T = [0*0 + (-11)*(-1) + 2*2, 0*(-11) + (-11)*0 + 2*0, 0*2 + (-1)*(-1) + 2*0;
-1*0 + 0*(-1) + (-1)*2, -1*(-11) + 0*0 + (-1)*0, -1*2 + 0*(-1) + (-1)*0;
2*0 + 0*(-1) + 0*2, 2*(-11)
Show more…