Mathematics
Mathematics, 13.09.2021 08:00, WritingStar1313

Từ hệ tiên đề của hình học Ơclít dùng trong trường phổ thông. Hãy chứng minh định lí: Trong không gian, qua một điểm không nằm trên đường thẳng cho trước. Có một và chỉ một đường thẳng song song với đường thẳng cho trước.

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Từ hệ tiên đề của hình học Ơclít dùng trong trường phổ thông. Hãy chứng minh định lí: Trong không...

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