Có bạn nào biết Đinh Bộ Lĩnh phong vương cho con là những ai ko (câu hỏi ngoài sách)
Ai bik tl giúp mik nhé,mai mik nộp bài rồi,mình cảm ơn nhiều❤❤❤
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b: \(\sqrt{8^2+6^2}-\sqrt{16}+\dfrac{1}{2}\sqrt{\dfrac{4}{25}}\)
\(=10-4+\dfrac{1}{2}\cdot\dfrac{2}{5}=6+\dfrac{1}{5}=\dfrac{31}{5}\)
1 poverty
2 decision
3 worried
4 awake
5 singers
7 northen
8 disappeared
9 difference
10 unimportant
11 windy
12 portable
13 sensibly
14 painting
15 mainly
1, What would he like to have for breakfast?
He would like to have a sandwich
2,Who would you like to go fishing with?
I would like to go fishing with my father
3,What would her children like to do in the summer?
They would like to go swimming
4,When would Mrs Tam like to go shopping?
She would like to go shopping at weekends
5,Where would Hung and Tung like to study
They would like to study in the library
1 What would he like for breakfast?
He'd like a sandwich
2 Who would you like to go fishing with?
I would like to go with my father
3 What would her children like to do in summer?
They would like to swim inpool
4 When would Mrs Tam like to go shopping?
She would like to go shopping on the weekends
5 Where would Tung and Hung like to study ?
THey would like to study in the school library
a) Điện trở tương đương của đoạn mạch :
\(R_{tđ}=\dfrac{R_1.R_2}{R_1+R_2}=\dfrac{60.40}{60+40}=24\left(\Omega\right)\)
b) Hiệu điện thế giữa hai đầu đoạn mạch :
\(U=I.R_{tđ}=2.24=48\left(V\right)\)
⇒ \(U=U_1=U_2=48\left(V\right)\) (vì R1 // R2)
Cường độ dòng điện chạy qua mỗi điện trở :
\(I_1=\dfrac{U_1}{R_1}=\dfrac{48}{60}=0,8\left(A\right)\)
\(I_2=\dfrac{U_2}{R_2}=\dfrac{48}{40}=1,2\left(A\right)\)
Chúc bạn học tốt