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Quang Phạm
Giới thiệu về bản thân
![xếp hạng xếp hạng](https://rs.olm.vn/images/medal_mam_non.png)
![ngôi sao 1 Ngôi sao 1](https://rs.olm.vn/images/medal_ngoi_sao.png)
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![sao chiến thắng Sao chiến thắng](https://rs.olm.vn/images/medal_win_1.png)
![xếp hạng xếp hạng](https://rs.olm.vn/images/medal_chuyen_can.png)
![ngôi sao 1 Ngôi sao 1](https://rs.olm.vn/images/medal_ngoi_sao.png)
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![ngôi sao 1 Ngôi sao 1](https://rs.olm.vn/images/medal_ngoi_sao.png)
![ngôi sao 2 ngôi sao 2](https://rs.olm.vn/images/medal_ngoi_sao.png)
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![sao chiến thắng Sao chiến thắng](https://rs.olm.vn/images/medal_win_1.png)
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![ngôi sao 1 Ngôi sao 1](https://rs.olm.vn/images/medal_ngoi_sao.png)
![ngôi sao 2 ngôi sao 2](https://rs.olm.vn/images/medal_ngoi_sao.png)
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![sao chiến thắng Sao chiến thắng](https://rs.olm.vn/images/medal_win_1.png)
B
c
\(\dfrac{-13}{15}\) + \(\dfrac{5}{21}\) - \(\dfrac{1}{3}\) - \(\dfrac{2}{15}\) + \(\dfrac{2}{21}\)
=\(\dfrac{-13}{15}\) + \(\dfrac{2}{15}\) - \(\dfrac{5}{21}\) + \(\dfrac{2}{21}\) - \(\dfrac{1}{3}\)
= \(\dfrac{-15}{15}\) + \(\dfrac{7}{21}\) - \(\dfrac{1}{3}\)
= \(\dfrac{-3}{3}\) + \(\dfrac{1}{3}\) - \(\dfrac{1}{3}\)
= \(\dfrac{-2}{3}\) - \(\dfrac{1}{3}\)
= \(\dfrac{-3}{3}\)
= -1
=\(\dfrac{14}{13}\) + ( \(\dfrac{-20}{260}\) - \(\dfrac{247}{260}\) )
=\(\dfrac{14}{13}\) + \(\dfrac{-267}{260}\)
=\(\dfrac{280}{260}\) + \(\dfrac{-267}{260}\)
=\(\dfrac{13}{260}\)
=\(\dfrac{1}{20}\)
I visit many famous places in Paris last year.
khí áp kế
Dạ con cảm ơn cô rất nhiều
508
Question 1:I live in Ho Chi Minh city.
Question 2: Yes, it is
Question 3: He's tall and has black hair.
Question 4: He's very friendly.
Question 5: No, I don't.
Question 6: I often get lucky money at Tet.