Cho $36x^2+16y^2=9$, tìm Min, max của: $A=y-2x+5$ :)

giúp mình bài 2.3 bằng cách lập bảng xét dấu nha câu a với câu c ko cần làm cũng đc

Lập trình tính tổng sau: S=1+1/2+1/3+...+1/n+...... Cho đến khi 1/n <= 0,0001

Giúp em với ạ Em cảm ơn ạ I. Rewrite these sentences by using “because”. 1. He couldn’t meet you because of being busy. ………………………………………………………………………………………………………………… 2. She went to bed early because of her sickness. ………………………………………………………………………………………………………………… 3. We spent the whole day in the garden because of lovely weather. ………………………………………………………………………………………………………………… 4. I can’t play volleyball because of my height. ………………………………………………………………………………………………………………… 5. We can’t swim in this part of the river because of highly polluted water ………………………………………………………………………………………………………………… II. Rewrite these sentences by using  “so” 1. She can’t work hard because she is very old. ………………………………………………………………………………………………………………… 2. He likes her because of she is very beautiful. ………………………………………………………………………………………………………………… 3. He broke the vase because he was careless. ………………………………………………………………………………………………………………… 4. He left school because his life was hard. ………………………………………………………………………………………………………………… 5. I went to bed early because I feel tired. ………………………………………………………………………………………………………………… III. Underlined word or phrase in each of the sentence needs correcting then correct it. 1. They were swimming in the ocean when the storm occurs. 2. I discovered something interestingly in the store so I got in to buy. 3. Who will look for your business affairs while you are away? 4. We are going to take role in school activities for the summer. 5. I bought a computer which screen was not very good. 6. Nam is one of my friends whom tried hard to succeed in his school age 7. What are you doing, mom? -I am listening to the forecast weather on TV. 8. We ought bring along a raincoat, I think it’s going to rain 9. The markets are closed so no food was available at the moment, I am afraid. 10. There are so many chicken in the garden that I can’t count them all. VI. Write a letter to complain about the noise. 1. I/ write/ this letter/ complain/ noise from Apartment 3C 2. I/ move into/ Apartment 2C/ November 1st

Bài 3: Tính diện tích khu đất có kích thước theo hình ve dưới đây. Tính diện tích khu đất đó

tìm hai số có hiệu bằng 724, biết rằng nếu lấy số thứ nhất cộng với số thứ hai rồi cộng với tổng của chúng thì được 4784

tìm số nguyên x , biết a) 5 - x = 8 - (-2) b) x - 3 = (-3) - 7 c) x - 2 = -1 d) x - (-5) = 2

Giúp bài 8 vs ạ:( Có mỗi 2 câu;-;

Giúp mình với! Cảm ơn! Hứa sẽ vote và cảm ơn

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