... HƯNG ĐẠOĐỀ KIỂM TRA 45 PHÚT TOÁN 10 HÌNH HỌC GIỮA CHƯƠNG I ____________________________________________________________________________ĐỀ 1 Câu 1 Cho 5 i m A,B,C,D,E. Chứng minh rằng:)b ... r_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Họ và tên học sinh:………………………………………………………………………… .Lớp……TRƯỜNG THPT TRẦN HƯNG ĐẠOĐỀ KIỂM TRA 45 PHÚT TOÁN 10 HÌNH HỌC GIỮA CHƯƠNG I ____________________________________________________________________________ĐỀ ... uuur r, M là trung i m của DE. Chứng minh rằng: 1 13 8AM AB AC= +uuuur uuur uuur____________________________________________________________________________B i gi i ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Họ...