Nguyên tố X có p+e+n =13 vậy X thuộc Giải thích giùm chỗ (2) vs ạ

biểu cảm về : Loài cây em yêu < 2 trang rưỡi > không cóp mạng tự viết Mik cảm ơn nhiều

Exercise 4. Rewrite the following sentences so that they have the same meaning as the first ones. 1. I met the girl at the library. It was at ……………………………………………………………………………… 2. Hung showed me the gold medal. He won it in Doha, Qatar. Hung showed ………………………………………………………………………. 3. Tom is talking to the man. The man is my uncle. The man …………………………………………………………………………… 4. Neither the lift nor the escalator is working. Both ………………………………………………………………………………… 5. The boy hit the dog in the garden. It was in ………………………………………………………………………….. 6. Mr. Brian offered the young man a new job. It was the young man……………………………………………………………………….by Mr. Brian. 7. I miss Jack more than anyone else. Jack is the person ……………………………………………………… 8.Julian\'s father has just come back a skiing holiday. He is over 48 Julian\'s father…………………………………………………………………………….. 9. The dog that bit my little daughter belongs to those rich people. Those are the rich people …………………………………………………………………. 10. James doesn’t smoke and he doesn’t drink. James neither ……………………………………………………………………………….. 11. I was the first to visit Mimosa’s blog. It was me ……………………………………………………………………………………..

Rút gọn D = ($\frac{2+√a}{2-√a}$-$\frac{2-√a}{2+√a}$-$\frac{4a}{4-a}$):($\frac{2}{2-√a}$-$\frac{√a+3}{2√a-a}$)

Giúp mik với ạ !! mik cần gấp!!!!!!!!!!!!!!!!!!!!

Giúp mik với ạ !! mik cần gấp!!!!!!!!!!!!!!!!!!!!

mn giúp mk mấy câu về thì voiwas ạ

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