Cau 10: Cho tam giac AB C. Tim cong thure dung trong cac cong thue sau: D A. . B. S =-bcsin B. C. S =-absin B.222 D. S=1/2acsinB 相关知识点: 试题来源: 解析 DTa có: S=1/2bcsinA=1/2acsinB=1/2absinC. 反馈 收藏 ...
百度试题 结果1 题目Cau 33: Tam giac MNP co trung tuyen MR va trong tam Q. Khang dinh nao sai? D A. S_(RPQ)=S_(BNQ)⋅ C. S_(QMN)=S_(NQP)=S_(QMP') 相关知识点: 试题来源: 解析 D 反馈 收藏
Cau 32: Cho hinh chop S.AB C co tam giac AB C vuong tai B, C =60° , A C =2, SA⊥(ABC) , SA=l Goi M la trung diem cua AB. Khoang cach d giua SM va B C laC d=(2√(21))/3 A.d=3u d=(2√(21))/7 C d=(√(21))/7 D. d=(√(21))/3 相关知识...
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柬老越发展三角区(CLV-DTA: Cambodia-Laos-Vietnam Development Triangle Area)联合协调委员会第十三次会议于2024年2月26日—3月1日在老挝南部阿速坡省召开(图1)。柬老越发展三角区于1999年由三国总理倡议成立,旨在加强三边合作,促进...
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