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Thai Nguyen xuan
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Nguyễn Lê Phước Thịnh
19 tháng 2 2022 lúc 21:37

Bài 2: Chọn C

Bài 4: 

a: \(\widehat{C}=180^0-80^0-50^0=50^0\)

Xét ΔABC có \(\widehat{A}=\widehat{C}< \widehat{B}\)

nên BC=AB<AC

b: Xét ΔABC có AB<BC<AC

nên \(\widehat{C}< \widehat{A}< \widehat{B}\)

Moon
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Nguyễn Thùy Linh
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Nguyễn Thùy Linh
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Nguyễn Thùy Linh
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Khánh
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Nguyễn Thùy Linh
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Nguyễn Thùy Linh
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Dhj Dhj
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Đỗ Thanh Hải
9 tháng 4 2021 lúc 19:20

1 Last week the doctor advised him not to swim in a few weeks

2 William Shakespeare was born on April 23th, 1564

3 He was the eldest son of a wealthy glove maker

4 He got married to Anne Hathaway and had three children

5He moved to Lon don in 1588 and joined in a theatrical company

Tuệ Lâm
9 tháng 4 2021 lúc 19:19

1. last week, the doctor advised me not to swim few weeks

2. william shakespeare was born on april 23th 1564

3. he is the eldest son of wealthy golve maker

4. he married anne hathaway and had three children

Bạn Tham Khảo

1. Last week the doctor advised him not to swim in a few weeks.

2. William Shakespeare was born on April 23th, 1564.

3. He was the eldest son of a wealthy glove maker.

4. He got married to Anne Hathaway and had three children.

5. He moved to Lon don in 1588 and joined in a theatrical company.

Duc Nguyen
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Nguyễn Lê Phước Thịnh
6 tháng 10 2021 lúc 23:27

Bài 5: 

A[-2;10)

\(A\cup B=\left(-\infty;10\right)\)

\(A\cap B=\varnothing\)

A\B=[-2;10)

B\A=(-\(\infty\);-3)