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Đáp án :
What’s the weather in winter? - …
A. It’s hot. B. It hot. C. It’s cold. D. ?
Hok tốt
\(A=\frac{1}{3}.\left(\frac{3}{2.4.6}+\frac{3}{4.6.8}+...+\frac{3}{22.24.26}\right)\)
\(A=\frac{1}{3}.\left(\frac{1}{2.4}-\frac{1}{4.6}+\frac{1}{4.6}-\frac{1}{6.8}+...+\frac{1}{22.24}-\frac{1}{24.26}\right)\)
\(A=\frac{1}{3}.\left(\frac{1}{2.4}-\frac{1}{24.26}\right)\)
\(A=\frac{1}{3}.\frac{77}{624}\)
\(A=\frac{77}{1872}\)
english
math
IT (Information Technology)
PE (Physical Education)
Art
Music
1.
1.There are 4 seasons in Vietnam.
2.What's the weather in autumn ?
3.He wrote a letter to his friend yesterday.
4.How far is it from here ?
5.We are going to the amusement park.
2.
a.C
b.C
c.B
d.C
e.A
3.
a.after
b.ride
c.better
d.museum
HT~
4.
a.There are 4 seasons in Vietnam.
b.It's sunny and hot in summer.
c.Nam and Mai are going to visit Hanoi.
d.They are going to there by train.
HT~
Good