Kiểm tra 45 Hình học 10 - Trường THPT Quốc Oai

Sở GD & ĐT Hà Nội Họ & tên………………………….. Trường THPT Quốc Oai Lóp…….. ---***--- Kiểm tra 45’ Điểm Lời thầy cô phê Đề : 1. Cho hình bình hành ABCD tâm O. I là trung điểm OC. Biểu biễn các vectơ và BI IG   theo a

 và b

, với ; a DA b DB     . ( G là trọng tâm tam giác OBC ).

2. Cho tam giác ABC, lấy các điểm M, N, P sao cho 3 MB MC   

; 3 0 NA NC     

;

0 PA PB     

. a) Tính ; MP MN 

theo các vectơ & AB AC  

b) Chứng minh M, N, P thẳng hàng.

Bài làm ......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

......................................................................................................................................................

ThuVienDeThi.com