Chủ đề:
Chương I - Hệ thức lượng trong tam giác vuôngCâu hỏi:
cho tam giác abc vuông tại a,đường cao ah.ab=3,bc=5.
a,hãy giải tam giác abc.b,kẻ bd là phân giác của góc
b.hãy tính độ dài đoạn ad
1,I am moving in to our new house tomorow→she said
2,why don't we discuss this problem at the next club meeting→he sugessted that
3,we keep information on our computer→the
4,he spent three hours going to lao cai→it
5,no one in mai s'family is as tall as mai→mai is
6,the town was beautiful.we spent our holiday there last summer→the town where
7,to do exercise is interesting→it is
8,i'm certainly not going to help you→i have no
9,she can speak russian much better than i do→i can't
10,john advised me to spend more time on the next exam→johnn suggested