He is go to the house and open the fridge to have something to eat and drink

Nước đến chân thì éc ô éc hả? (;

Hàm số bậc hai luôn dương khi a > 0 và b² - 4ac < 0

`#3107.101107`

\(A=1+3+3^2+3^3+...+3^{101}\)

$A = (1 + 3 + 3^2) + (3^3 + 3^4 + 3^5) + ... + (3^{99} + 3^{100} + 3^{101}$

$A = (1 + 3 + 3^2) + 3^3 (1 + 3 + 3^2)  + ... + 3^{99}(1 + 3 + 3^2)$

$A = (1 + 3 + 3^2)(1 + 3^3 + ... + 3^{99})$

$A = 13(1 + 3^3 + ... + 3^{99})$

Vì `13(1 + 3^3 + ... + 3^{99}) \vdots 13`

`\Rightarrow A \vdots 13`

Vậy, `A \vdots 13.`

\(A=1+3+3^2+3^3+3^4+3^5+...+3^{101}\\=(1+3+3^2)+(3^3+3^4+3^5)+(3^6+3^7+3^8)+...+(3^{99}+3^{100}+3^{101})\\=13+3^3\cdot(1+3+3^2)+3^6\cdot(1+3+3^2)+...+3^{99}\cdot(1+3+3^2)\\=13+3^3\cdot13+3^6\cdot13+...+3^{99}\cdot13\\=13\cdot(1+3^3+3^6+...+3^{99})\)

Vì \(13\cdot(1+3^3+3^6...+3^{99}\vdots13\)

nên \(A\vdots13\)

\(\text{#}Toru\)

b) Tia tới hợp vs tia phản xạ một góc 90* và tia phản xạ hợp vs mặt gương một góc 8* bằng vs số đo vs tia tới hợp vs mặt gương

a)

b) Nhận xét:

-Tia tới và tia phản xạ có góc tới và góc phản xạ bằng nhau

-Tia tới hợp với gương G1 bằng tia phản xạ hợp với gương G2

?????????????????

J v bạn

Bn có thể ns lại đề bài 1 cáh cụ thể ko

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invite many times and go, the future, you can do so. Our hardware
* Title criteria:
_ Excessive together, over, you done
_ The way to the future The future has many different things, it is your choice.
* Enter the number of threads:
a. Explain:
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_ Only text with others can do After choosing, among different things
b. Comment:
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Ants: have children students, others, fans
c. Rùi
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* Contact text
_ Who is your office
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..........
The more the male leads the way and the future, you can do so
The man who is born is the one who has life, the one who has a hybrid, the one who is; Our hardware or You are in their world. What can you do? Join it, it is one of the different things. One of the different things that can bring you success? However, our path is no different. Our hardware can have spikes, rectangles Nobody gives nobody anything! And decided, and nothing difficult. One when people among others, one of theirs. Jerking, only part of success, fun, fun, fun, fun. Love, it's me, it's you, is one of your friends. How to calculate, doing so is great
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There is no difference E, E, E, E, EE EE EE EE Eu How when you are punished and no different.
Be careful, 21 elements, feminine, one element, a large number You can use a number of different things. Partially priced, love and long, and thorns

Ngô Sĩ Liên sinh : thế kỉ XV, mất : 20 tháng tám âm lịch. ( Không rõ )

Ngô Sĩ Liên sinh vào thế kỉ XV và mất vào ngày 20 tháng 8 âm lịch( và năm mất không rõ)

TL :

  + Chảy máu ở tĩnh mạch: chảy chậm, ít. Có thể sơ cứu tại chỗ bằng băng dán hay gạc (nếu vết thương sâu thì nên đến bệnh viện).

    + Chảy máu ở động mạch: chảy mạnh do vẫn tốc máu trong mạch lớn, chảy thành tia gây nguy hiểm, cần sơ cứu tạm thời và đưa ngay đến bệnh viện.

HT