Áp dụng công thức sau: 

Tổng dãy số tăng dần = số số hạng x (số đầu +số cuối):2

Có 999 số hạng

=> A =999x(1+999):2=499500

Vậy A > 10000

yeu mến, yêu quý,..

1. She likes watching television.

2. They live far from school, but we do.

Hello everyone, everyone must have had an interesting and memorable adventure in life. Me too, today I will tell you about an exciting adventure of mine. That day was Sunday, my family and I went to visit Bai Dinh pagoda - Ninh Binh. We got in the car at 3:30 a.m. and arrived around 6 o'clock. First we went to visit the temple, I learned that this place, more than 1000 years ago, was the temporary capital of the Dinh during the construction of Hoa Lu capital and then acted as one of The "four towns" of Hoa Lu capital. Also here, under the Ly dynasty, National Master Nguyen Minh Khong built a monkhood, used to cure diseases to save people, especially the cure for the cure of tigers for King Ly Than Tong. is one of the centers of Buddhism (worshiping Buddha), religion (worshiping Cao Son), worshiping Mother (mother Lieu Hanh). After that, my family and I went into the caves, of course we got a lot of good memories. After visiting the pagoda, we went to visit Trang An river and saw in the bottom of the small boat, the scene was very romantic. The feeling of being in nature, listening to wild birds, not having to worry about work or study, is so enjoyable. Going deep will have to paddle through shimmering stalactites caves, with many different shapes. Until about 5 pm, we returned home. This tour will leave me a lot of joy and happiness. I will never forget it. 

Bạn Mai vừa học giỏi toán, mà bạn học tiếng anh cũng siêu

TK:

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