refer

Hometown you show up with bags of grain dep.Dong Photo Fresh golden and shining like gold silk covered with a strip of green trees look very dep.Nhung petal as covering all target, san roof houses close together , interjected that vuon.Trong garden areas, birds chirping, singing converge here as 1 table knife quieter sounds tai.nhung enjoy the summer, the more exciting by the sound of cicadas cried with tingle. afternoon, children fly kites off the field with high drop kids khac.Co kids, racing to keep themselves in the wind, want higher, fly farther nua.Em sit one place & listening flute, the new feel get the flute or how: at the climb, at lowered, vi vu, polysyllabic. & also sitting think later hometown I would difference now very much due to the domination of industrialization and modernization .After will no yellow nursery fields that will be planned into one region. & would not have covered every green tree which is the industrial park will chen lan.Khong also houses the 4 which is replace = the mansion house. & when it does not have small gardens to plant crops thich.Khong beloved garden the birds did not seek to find one piece of land & # But anyway I it still always love you because this is where he was born that his

Hai Phong – A mighty, majes port city with many beautiful scenes and the place where I was born and raised. Hai Phong is located in the north of Vietnam. Hai Phong is bordered by the sea, so there are many ports. Hence, this place was called the port city. Weather in Hai Phong has features of the weather in the North. There are four seasons here. Spring is warm, summer is hot and sunny. Autumn is cool and winter is cold. My favorite is the people here. Hai Phong people are simple and gentle. Everyone is very friendly and caring for each other. When the big cities are smoggy, the Air in Hai Phong is very fresh. Busy people and cars give this city a bustling atmosphere. Coming to Hai Phong, you will enjoy delicious Banh My Que with pate. A characteris feature of this place is the color of phoenix flowers that glow in the sky in summer. Every time I go away seeing phoenix flowers, I remember my beloved Hai Phong. I love Hai Phong. I love everything here.

ảnh này bn lên mạng nha!!!

Tham khảo

Ninh Binh - the most beautiful place I have ever seen, is a province in Northern Vietnam. My hometown is a small city, so it does not have many interesting places or buildings. There are some interesting places such as: Gia Xuan Market, Ninh Binh amusement park, .... And some specialties such as: Steamed rice, spring rolls, mountain snails, ... Once the dish has been After processing, tourists can enjoy the delicious taste of this gift, Ninh Binh also has many other special dishes. In addition, it also produces wheat, which has a vast field. Ninh Binh may not be perfect in everyone's eyes, but it is something very important to me.

a × 9 - b × 9

= 9 × (a - b)

= 9 × 8/3

= 24

cảm ơn bạn

x+y+xy=40

x.(y+1)+y=40

x.(y+1)+y+1=41

(x+1).(y+1)=41

Vì 41 là số nguyên tố, x,y nguyên

Xảy ra 4 trường hợp:

TH1; x+1=41,y+1=1

=>x=40,y=0(chọn)

TH2: x+1=1,y+1=41

=>x=0,y=40(chọn)

TH3: x+1=-1,y+1=-41

=>x=-2,y=-42(chọn)

TH4:x+1=-41,y+1=-1

=>x=-41,y=-2

x+y+xy=40=>x(1+y)+(y+1)=41=>(y+1)(x+1)=41

do x,y là số nguyên=>y+1 và x+1 cũng là số nguyên =>y+1;x+1 thuộc Ư(41)

sau đó bạn tự chia trường hợp nhé 

Có 4 trường hợp 

kết quả là (40;0) (0;40)(-42;-2)(-2;-42)

nhớ mình nha

ta thấy số nhỏ nhất chia hết 15 và 18 là 270 mà ta thấy số cần tìm cộng 7 chia hết 15 và 18 vậy số đó là 270 - 7 = 263

chia số đó thành 15 và 18 phần =nhau.ta có giá trị 1 phần là:

9+8=17

số đó là:17x15+8=263

đs:263

Chắc là mình không thể giúp gì được cho bạn

Ta có:
\(\dfrac{1}{4^2}< \dfrac{1}{3.4}\)
\(\dfrac{1}{5^2}< \dfrac{1}{4.5}\)
\(\dfrac{1}{6^2}< \dfrac{1}{5.6}\)
\(...\)
\(\dfrac{1}{100^2}< \dfrac{1}{99.100}\)     \(\left(1\right)\)
\(\Rightarrow\dfrac{1}{4^2}+\dfrac{1}{5^2}+\dfrac{1}{6^2}+...+\dfrac{1}{100^2}< \dfrac{1}{3.4}+\dfrac{1}{4.5}+\dfrac{1}{5.6}+...+\dfrac{1}{99.100}\)
Đặt \(A=\dfrac{1}{3.4}+\dfrac{1}{4.5}+\dfrac{1}{5.6}+...+\dfrac{1}{99.100}\)
\(=\dfrac{1}{3}-\dfrac{1}{4}+\dfrac{1}{4}-\dfrac{1}{5}+\dfrac{1}{5}-\dfrac{1}{6}+...+\dfrac{1}{99}-\dfrac{1}{100}\)
\(=\dfrac{1}{3}-\dfrac{1}{100}\)\(< \dfrac{1}{3}\)     \(\left(2\right)\)
Từ \(\left(1\right)\) và \(\left(2\right)\)
\(\Rightarrow\dfrac{1}{4^2}+\dfrac{1}{5^2}+\dfrac{1}{6^2}+...+\dfrac{1}{100^2}< \dfrac{1}{3}\)

211. cho a=45: b=204 :c=126    a) tim UCLN (a,b,c)  b) tim BCNN(a,b )

do la

211cho a =45;b=204;c=126

a)tim UCLN(a,b,c)

b)tim BCNN(a,b)

viet duoc the thoi

The children went jogging with their parents at the zoo.

The children went jogging with their parents at the zoo

đề bài sai

ko sai đâu bn