Mn giải giúp em câu này với ạ .
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cái này áp dụng hệ thức lượng thôi bạn
AH=căn 6^2-4,8^2=3,6cm
=>AC=6^2/3,6=10cm
![](https://rs.olm.vn/images/avt/0.png?1311)
Em có thể search trên gg để chủ động làm trước
https://hieusach24h.com/sach/cong-nghe-9-lap-dat-mang-dien-trong-nha/
![](https://rs.olm.vn/images/avt/0.png?1311)
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1 found out
2 dress up
3 applied for
4 go on
5 cheered up
6 take off
7 pull down
8 set up
9 get over
10 turn back
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1 The boys like playing video games
2 My mother doesn't like listen to music
3 You should eat more fresh fish, which makes you smarter
4 He had a headache last night, sho he didn't sleep well
5 Doing exercises makes you healthier
6 My dad enjoys planting trees
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1 will have - will invite
2 goes
3 play
4 won't study
5 does
6 will travel
7 won't come
8 will come
bài 2
1 riding - walking
2 swimming
3 watching
4 tell
5 travel
6 studying
7 seeing
8 go - have