Mathematics, 23.06.2021 23:50 trellizzz

Cho hệ phương trình tuyến tính gồm 5 phương trình và 4 biến số. Biết rằng hệ có vô số nghiệm với 3 biến tự do. Ma trận hệ số của hệ có hạng bằng

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Cho hệ phương trình tuyến tính gồm 5 phương trình và 4 biến số. Biết rằng hệ có vô số nghiệm với 3 b...

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