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minhphuc11092005
2 năm trước
Cho tam giác abc có 3 đường trung tuyến an,bp,cg.G là trọng tâm. Trên tia ag lấy e sao cho g là tđ ae a)cm be=cg b)cm ec=2/3bp c) cm 4×(an+bp+cq)>3×(ab+ac+bc) d)cm an+bp+cq<ab+ac+bc Giúp mik với mik đang cần gấp câu d ý
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