i need help
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Những câu hỏi liên quan
16 tháng 2 2022
a)Máy biến thế tăng áp.
b)Ta có: \(\dfrac{n_1}{n_2}=\dfrac{U_1}{U_2}\Rightarrow\dfrac{500}{20000}=\dfrac{220}{U_2}\)
\(\Rightarrow U_2=8800V\)
c)\(P_{hp}=\dfrac{P^2\cdot R}{U^2}=\dfrac{\left(10^6\right)^2\cdot100}{8800^2}=1291322,314W\)
5 tháng 2 2022
30 All of them hope they won't be late for school
31 These children are interested in going to the seaside
32 I don't know why she is very cheerful
33 She doesn'r know where the key is
34 This is the most interesting film I have ever seen
35 Everest is the highest mountain in the world
36 He wishes he would make a trip around the world next year
37 It's nice of you to lend me the novel
23 That girl did all her homework yesterday
24 Our parents will come here tomorrow
35 Before the war, our uncle had lived here
MN
5 tháng 2 2022
23. That girl did all her homework yesterday
24. Câu này có vấn đề rồi, em xem lại nha
25. Before the war, our uncle had lived here
30. All of them hope they won't be late for school
31. These children are interested in going seaside
32. I don't know why she is very cheerful
33. She doesn't know where is the key
34. This is the most interesting film I have ever seen
35. Everest is the highest mountain in the world
36. He wishes he could make a trip around the world next year
37. It was nice of you to lend me your novel.
TN
GUYS HELP ME I NEED QUICK
1
23 tháng 8 2021
a: \(\sqrt{12+2\sqrt{35}}=\sqrt{7}+\sqrt{5}\)
b: \(\sqrt{16+6\sqrt{7}}=3+\sqrt{7}\)
d: \(\sqrt{27+10\sqrt{2}}=5+\sqrt{2}\)
e: \(\sqrt{14+6\sqrt{5}}=3+\sqrt{5}\)
LQ
1
LQ
1
mở 2 tap cùng bài đó lên rồi làm đi:)
Những từ có bắt đầu bằng tiếng ''đồng'' nhưng không có nghĩa là ''cùng'' là:
Đồng thau, đồng hồ, mình đồng da sắt, dây đồng, cộng đồng