设A为2 × 2矩阵，元素a11 = a12 = a21 = +1 并且 a22 = -1。那么矩阵A19的特征值是
det(A) = -2.
det(A^19) = (det(A))^19 = -2^19 = lambda1*lambda2.
det(A^19) = (det(A))^19 = -2^19 = lambda1*lambda2.
青云测评
青云测评
设A为2 × 2矩阵，元素a11 = a12 = a21 = +1 并且 a22 = -1。那么矩阵A19的特征值是
