N?i dung ra ??: ki?n th?c c?a các bài ??c v?n ?ã ???c h?c.D?ng ??: Ngh? lu?n v?n h?c, ngh? lu?n v?n h?c k?t h?p ngh? lu?n xã h?i.
Mark the letter A, B, C, or D in your response sheet to point the correct solution to each of the subsequent thoughts.
H? tr?i nghi?m, h
Câu fifteen. ?? dài trung tuy?n mc ?ng v?i c?nh c c?a DABC b?ng bi?u th?c nào sau ?ây
(start off array l A subset B Leftrightarrow forall x within a Rightarrow x in BA notsubset B Leftrightarrow exists x in the Rightarrow x notin Bstop array )
T?t C?Th? D?c L?p 10Th?