Find expert answers and community support for all your questions on IDNLearn.com. Ask anything and receive well-informed answers from our community of experienced professionals.
Cho hình bình hành ABCD . Gọi E , F , M , N là trung điểm AB , BC , CD , DA . Cmr : a) Ba vectơ EF , AC , MN cùng phương . b) vectơ EF = vectơ NM. Suy ra : EFMN là hình bình hành
We value your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. IDNLearn.com is committed to providing the best answers. Thank you for visiting, and see you next time for more solutions.
