tìm giá trị lớn nhất, GTNN của hs b) y=-x²+6x+5, x>2 d) y= -x³ +3x+12 ,x>0 f) y=1+2x²- $\frac{x^{4}}{4}$

xác định các danh từ trong đoạn văn sau Tiếng đàn bay ra vườn. Vài cánh ngọc lan êm ái rụng xuống nền đất mát rượi. Dưới đường, lũ trẻ đang rủ nhau thả những chiếc thuyền gấp bằng giấy trên những vũng nước mưa. Ngoài Hồ Tây, dân chài đang tung lưới bắt cá. Hoa mười giờ nở đỏ quanh các lối đi ven hồ. Bóng mấy con chim bồ câu lướt nhanh trên những mái nhà cao thấp.

Giúp e giải bài này e cần gấp ạ,e cảm ơn nhiều ạ 2cos^2.x+(sin2x/√3)=1

Giúp mình với ạ, mình cần gấp, mình sẽ vote điểm cao ạ

cần gấp ( cho 5 sao và ctrlhn ) có giải thích thì càng ok nha III. Complete the sentences below, using the suitable comparison form of the suggested adjectives. 1. He is (clever) __________ student in my group. 2. It's (good) __________ holiday I've had. 3. Lan sings (sweet) __________ than Hoa does. 4. My Tam is one of (popular) __________ singers in my country. 5. The weather this summer is even (hot) __________ than last summer.

vì sao khi chủ nghĩa đế quốc sụp đổ thì lịch sử các nước á phi âu bước sang 1 trang mới.( GIÚP MINH VS MẤY CAO THỦ SỬ CẦN GẤP Ạ)

làm hộ mik bài trắc nghiệm này với nhanh ạ để mik kiểm tra 15'

Thành thị thị quốc gồm yếu tố nào cấu tạo thành ?

giúp mình với mình cần trong 10 phút ạ đề bài: 1.Mark the letter A, B, C or D to indicate the word that its pronunciation differs from the other three in each of the following questions: A. how B. town C. power D. slow (0.5 Points) A B C D 2.Choose the best answer My friend has …………….hair A. long dark straight C. short blond curly B. long straight dark D. long blond curly (0.5 Points) A B C D 3.Choose the best answer His students ________ (not, speak) German in class. A. don’t speak B. doesn’t speak C. not speak D. doesn’t speaks (0.5 Points) A B C D 4.Mark the letter A, B, C or D to indicate the word that its pronunciation differs from the other three in each of the following questions: A. lays B. says C. stays D. plays (0.5 Points) A B C D 5.Choose the best answer Mr Brown is the same age……………… Mrs Brown. A. as B. like C. with D. from (0.5 Points) A B C D 6.Choose the best answer He...............with friends in apartment in HCMC last year. A. living B. is living C. lived D. live (0.5 Points) A B C D 7.Choose the best answer It's ____ to walk. I'll take the bus. A. enough far B. far enough C. too far D. too much far (0.5 Points) A B C D 8.Choose the best answer –“How do you do?” –“______________.” A. How do you do? B. Not too bad. C. I’m well. Thank you. D. Yeah, OK. (0.5 Points) A B C D 9.Mark the letter A, B, C or D to indicate the word that its pronunciation differs from the other three in each of the following questions: A. hear B. clear C. bear D. ear (0.5 Points) A B C D 10.Choose the best answer There is a meeting..................9 AM and 2 PM. A. on B. between C. till D. at (0.5 Points) A B C D 11.Choose the best answer I often play football_________ Sunday afternoon. A. in B.at C.on D.during (0.5 Points) A B C D 12.Choose the best answer I'm tired. I didn't ____ last night. A. enough sleep B. sleep enough C. too sleep D. too much sleep (0.5 Points) A B C D 13.Choose the best answer –“Would you like something to eat?" –“______________. I'm not hungry now.” A. Yes, I would B. No, no problem C. No, thanks D. Yes, it is (0.5 Points) A B C D 14.Choose the best answer My litter son is not …………….. to lift the box. A. strong enough B. enough strong C. strong too D. so strongly (0.5 Points) A B C D 15.Choose the letter A, B, C or D to indicate the underlined part that needs correcting in each of the following sentences: I am (A) very interesting (B) in problems caused (C) by pollution (D). (0.5 Points) A B C D 16.Choose the best answer It's very kind..............you to say so! A. in B. to C. for D. of (0.5 Points) A B C D 17.Choose the best answer Lan is quite……………in public, she doesn’t want to talk much. A. sociable B. humorous C. reserved D. generous. (0.5 Points) A B C D 18.Choose the best answer My father __________ excuses when I feel like going to the cinema. A. make always B. make always C. always makes D. always make (0.5 Points) A B C D 19.Mark the letter A, B, C or D to indicate the word that its pronunciation differs from the other three in each of the following questions: A. this B. thick C. maths D. thin (0.5 Points) A B C D 20.Choose the letter A, B, C or D to indicate the underlined part that needs correcting in each of the following sentences: My (A) mother still spends (B) 14 hours a day (C) do (D) the houseworkImmersive Reader (0.5 Points) A B C D giúp mình nhanh với ạ mình cần trong 10 phút

$\dfrac{\sqrt{x}}{2\sqrt{x}-3}$ tìm x nguyên để biểu thức nguyên