khó nhỉ

\(\left(1+\frac{1}{100}\right).\left(1+\frac{1}{99}\right)+\left(1+\frac{1}{98}\right)+....+\left(1+\frac{1}{2}\right)\)

= \(\frac{101}{100}.\frac{100}{99}.\frac{99}{98}.....\frac{3}{2}\)

= \(\frac{100}{2}\)

= 50

Căn cứ xác định công dân của mỗi nước là quốc tịch.

vì quốc tịch là căn cứ xc định công dân một nc.ko có thì ko biết là người nc nào

ko giong nhau

là quốc tịch

I would like a chicken and some rice for lunch.

There is a normal- looking guy who visits a doctor .

- How are you doing ?

- That is your job to look for - he says - that is why I came here .

- In this case - the doctor said - he was sitting in the living room for about an hour . I needed to call a specialist . She was the veterinarian and the only doctor I knew could see that . No need to ask.

inexpensive

1. play => playing

2. thousand => thousands