thang 1 january

thang 2 february

thang 3 march

thang 4 april

thang 5 may

thang 6 june

thang 7 july

thang 8 august

thang 9 september

thang 10 october

thang 11 november

thang 12 december

JANUARY           FEBRUARY           MARCH                APRIL         MAY         JUNE           JULY         AUGAS           SEPTEMBER                                                                                                                                                                                                                                       OCTOBER          NOVEMBER          DECEMBER

January

February

March

April

May

June

July

Augas

September

October

November

December

sai nói mình nha

Tháng 1: January

Tháng 2: February        

Tháng 3: March

Tháng 4: April

Tháng 5: May

Tháng 6: June

Tháng 7: July

Tháng 8: August

Tháng 9: September

Tháng 10: October        

Tháng 11: November

Tháng 12: December

January

February

March

April

May June

July 

August

Septemper

October

November

December

de ma

 Vietnam - our country, is very beautiful. It has four seasons: spring, summer, fall (autumn) and winter. In the spring it is often warm, sometimes it's rainy. In the summer it's hot and sunny. The weather is cool in the fall and in the winter it is cold and windy. I like hot weather because I can do many activities. When it's hot, I usually go swimming and eat ice cream. Sometimes I go walking with my sister.

There are 4 seasons in a year in Ha Noi: The spring, the summer, the autumn and the winter, a season has a special weather type.

The spring make people fell the most comfortable. It is fine and dull, the wind is gentle that glide by my cheek. It’s the season that is warmer than the winter and cooler than the summer. The tree is look like full of vitality , many the green leafs, many young buds. Everybody send the best wishes to people that we love in the new year, at that time, having many festival is hold. But, this season is usually appear the drizzle, so the road is dirty and the air in our home is wet.

The summer make people imagine the sea holidays. The temperature is the highest in year, every morning when we get up, the sun‘s come out and in the midday, the sun’s shining ( there’re not a cloud in the sky) , may be in the afternoon: when the sun ‘s just gone in, it raining cats and dog. The weather in this season is the same kinky girl. So, people will escape it by the way: finding the tourist attraction is near the sea, see the white sand in a beach, fell the cool air under the heat wave. However, many terrible storm in this time.

The autumn is a romantic season. The yellow leaf is full of the road, everyone wear the simple clothes. Having couples are married, they take a album wedding in the old street. But, in the morning, it have many foggy- will be difficult to see the road, it’s dry- easy to fire. Sometimes, it had a heavy rain, sometimes it haven’t had any rain for a fortnight .

The winter is very cool. In Ha Noi hasn’t the snow, the sleet or the ice but we feel the chilly. We have to wear many clothes to go out. Whenever we also want to sleep, eat the hot food, not touch the water. So, we often busy in the end of the year to complete the work and come back home with our family.

12 months

CHÚC BN HỌC TỐT

Tháng 1- January

Tháng 2- February

Tháng 3- March

Tháng 4- April

Tháng 5- May

Tháng 6- June

Tháng 7- July

Tháng 8- August

Tháng 9- September

Tháng 10- October

Tháng 11- November

Tháng 12- December

Bạn sử dụng cấu trúc 

You should / You shouldn't rồi làm 

tự làm đê

:)

Cho mik ké.....

              Để pt có 2 No phân biệt thì :

                           \(\Delta>0\Leftrightarrow4\left(m-1\right)^2+4\left(2m-5\right)>0\)

                                        \(\Leftrightarrow...................\Leftrightarrow m^2>4\)

                                            \(\Leftrightarrow\orbr{\begin{cases}m>2\\m< -2\end{cases}}\)

  Khi đó phương trình có 2 No phân biệt thỏa mãn :

               \(\hept{\begin{cases}x_1+x_2=-2m+2\\x_1.x_2=-2m+5\end{cases}}\)

Ta có :

                \(2x_1+3x_2=-5\Leftrightarrow\left(x_1+x_2\right)+x_1+2x_2+5=0\)

        \(\Leftrightarrow-2m+2+x_1+2x_2+5=0\)

       \(\Leftrightarrow-2m+5+x_1+2x_2+2=0\)

      \(\Leftrightarrow x_1.x_2+x_1+2x_2+2=0\)

    \(\Leftrightarrow\left(x_1+2\right)\left(x_2+1\right)=0\)

Với      x₁  =  -2  thì :   \(x_2=-2m+4=\frac{-2m+5}{-2}\)\(\Leftrightarrow4m-8=-2m+5\)\(\Leftrightarrow m=\frac{13}{6}\)(  t/m  )

           x₂  =  -1  thì :   \(x_1=-2m+3=2m-5\Leftrightarrow m=2\)(  ko t/m )

 Vậy..........

Thứ năm ngày 2

= Thursday , 2nd

monday : thứ 2

tuesday : thứ 3

wednesday : thứ 4

thursday : thứ 5

friday : thứ 6

saturday : thứ 7

sunday : chủ nhật