Câu5.ChohaiđiểmA,Bcáchnhau3cm.Vẽđườngtròn(A;2,5cm)và đường tròn(B; 1,5cm).Hai đường tròn này cắt nhau tại C và D. a. Tính CA, DB. b.Đườngtròn(B;1,5cm) cắt AB tạị I .I có là trung điểm của AB không tại sao?

55² + 45² + 90. 55 hình bh ABCD có góc A bằng 2 lần góc B . tìm D

If I were in your shoes, __________. * 25 điểm A. I will say sorry to them B. they would buy them for me C. I would apologize to them D. they can have them

vẽ đậu mầu chán :'> NL: họa vắng quá ;-;;;; @Sâu

rút gọn: a) √(3- √2) ² b) √(2a+5) ²-(2a-7)

Tìm m để phương trình có nghiệm duy nhất

giúp e giải chi tiết bài này với ạ!!!!!

50. The poem consists ______________ two parts. A. on B. for C. of D. to 51. Hanoi and Kuala Lumpur are the same ____________________some ways. A. in B. on C. at D. by 52. I was very impressed the efficiency of the staff. A. on B. by C. to D. in 53. We have lived in this town 1998. A. for B. since C. ago D. in 54. I haven’t heard from Maria . A. since many months before B. for many months C. for many months ago D. since a long time 55. In the 18th century jean cloth was made completely _________________ cotton. A. at B. from C. by D. in 56. In 1886, Levi sewed a leather label ___________________their jeans. A. in B. at C. above D. on 57. Everything is _______ satisfactorily. A. going on B. looking after C. falling through D. turning up 58. Would you like to go to the concert? .- Thanks, but I it already. A. had seen seeing B. have seen C. had seen D. did see 59. “Would you like to go and visit the museum tomorrow?” – “___________________.” A. That’s right B. I like to see it C. You must want it D. That would be great

1 . Rob ( have ) a headache and he needs to rest more . 2 . I ( not / see ) Paul today , but i ( see) him last Sunday . Mọi người giúp mik với ạ . Mik cảm ơn

Giúp em với huhu Cho góc nhọn ∝. chứng minh rằng: cos6∝+sin6∝+3sin²∝cos²∝=1