Vẽ sơ đồ tư duy hệ thống kiến thức chương 2:tích vô hướng của 2 vectơ và ứng dụng.Mng giúp mk với!Thanks ạ!

Tính
1/\(\sqrt{\frac{4}{9-4\sqrt{2}}}-\sqrt{32}+5\sqrt{\frac{1}{2}}\)
Khó mỗi câu này thôi!Giúp mk vs.Thanks ạ!

Rewrite the following sentences using the words given.
1. “I walked home after the event,” Tom said.
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2. “Do you enjoy listening to music?” Bin asked her.
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3. She said to me “Can you speak Vietnamese?”

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4. “I don’t like this red cap,” she said.
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5. He said to me “I haven’t finished my work”.
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6. “I must go home to make the dinner”,said Linda.
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7. “I have just received a postcard from my aunt,”my best friend
said to me.
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8. “Do your sister and brother go to the same school?” Nam asked
his friend.
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9. ”Give him a smile,”The photographer told him.

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10. “Don’t discuss this question now,” said my teacher to us.
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11. “If the weather is fine, I will go on a picnic with my friends,”
she said.
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12. “What would you do if you had three days off ?” I asked him.
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13. “If you had listened to my advice, you wouldn’t have made
such a big mistakes.” Julia said to LiLi.
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14. “I’m sure she will help you if you ask her.”, he told me.
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15. “I will be surprised if Mary doesn’t pass the exam.”, our
teacher said.

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Giúp mk nha!Thanks trước!