Trên mặt phẳng tọa độ cho ba điểm A(2;3)B(-1;-3)C(0;-1)
a)tìm hệ số gocs của đường thẳng AB
b...
Mathematics, 30.07.2021 14:00 kookycookiefanx
Trên mặt phẳng tọa độ cho ba điểm A(2;3)B(-1;-3)C(0;-1)
a)tìm hệ số gocs của đường thẳng AB
b)Chứng tỏ rằng ba điểm A, B,C thẳng hàng
Answers: 3
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