• 2022-06-18
    把[tex=9.786x6.071]1xLK2S2fjz/DkWdie5OKhaFdcENbubJ0qBqdEvyqjQWA1x3bCucDAcdNJPJgHFUUgyPxBiKWmk9Soq71+EHubdsEWK1zDzSpTD9idAakDRBqcZvJhye2vbUvhm2Jb3jFuFudZQOLOD1hkwqf7VLz/lGvKeVI5y1GdlJG6mMP5JCaG4lLEpi7sy0KKr7cP73B[/tex]化为上三角形行列式,并计算其值。