设A为[tex=2.714x1.071]319e/AVA5VexfWBQXpJ9ug==[/tex]矩阵，证明矩阵方程[tex=3.643x1.214]+a3DWsDTkgfLfEl0RHCLyw==[/tex]有解的充分必要条件是[tex=4.357x1.357]jEEivN/5gJOW4N32rCGoUCD/BSCzPVhNAj+HIfDhvis=[/tex]
设A为[tex=2.714x1.071]319e/AVA5VexfWBQXpJ9ug==[/tex]矩阵，证明矩阵方程[tex=3.643x1.214]+a3DWsDTkgfLfEl0RHCLyw==[/tex]有解的充分必要条件是[tex=4.357x1.357]jEEivN/5gJOW4N32rCGoUCD/BSCzPVhNAj+HIfDhvis=[/tex]
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