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Câu 20:

Giải phương trình $(2 + i)z = 1 - 3i$

Câu 20: Giải phương trình (2+i)z=1−3i(2 + i)z = 1 - 3i(2+i)z=1−3i trong C.

Thông tin câu hỏi

Câu 20:

Giải phương trình $(2 + i)z = 1 - 3i$ trong C.