Tìm giá trị nhỏ nhất của biểu thức A = \(x^2\) + \(\sqrt{x}\)-133 với x ≥ 0

cho các số a,b,c thỏa mãn \(\dfrac{a}{2020}\)=\(\dfrac{b}{2021}\)=\(\dfrac{c}{2022}\) Chứng tỏ rằng 4(a-b)(b-c)=\(\left(c-a\right)^2\)

Tìm x , y biết
\(\dfrac{x-1}{2005}\)=\(\dfrac{3-y}{2006}\) và x-y = 4009 Mình mới lớp 7 đừng giải theo hệ phương trình gì nhé

READING 2

I/Read the following passage and choose the option (A, B, C or D) that best answers each question.

Monash University is a public university located in Melbourne, Australia. It was established in 1958 by an Act of the State Parliament of Victoriandis the second oldest university in the State of Victoria. The university was named after the prominent Australian general Sir John Monash. This was the first time in Australia that a university had been named after a person, rather than a city or state. IT was originally intended to have an emphasis on science and technology. However, it quickly expanded beyond this. In its early years, it offered undergraduate and postgraduate degrees in engineering, medicine, science, arts, economics and politics, education and law. Initially, it was best known for its strong research capacity in the sciences and for its innovative teaching in law and medicine.

(Adapted from https://en.wikipedia.org/wiki/Monash_University)

1. Monash University was named after _____.

A. a city                

B. a state                

C. a man                

D. a woman

2. Monash University is _____.

A. over 100 years old                                

B. 50 years old

C. about 60 years old                        

D. over 70 years old

3. The university originally focused on _____.

A. engineering and science                        

B. science and technology

C. law and education                                

D. economic and politics

4. The university was famous for its _____.

A. research capacity in sciences                

B. innovative teaching in law and medicine

C. postgraduate degrees                        

D. both A and B

5. Monash University is the _____.

A. oldest city in Australia                        

B. second oldest university in Australia

C. second oldest university in the state of Victoria

D. oldest university in Victoria

hoàn thành câu
I/be/afriad/there/not/sugar/left/refrigerator
main/ingredient/use/Vietnamese food/be/rice/fish/sauce/vegetable

${\mathrm{Tính\; 1}}^2$+$2^2$+$3^2$+...+${10}^2$

${\mathrm{Tính}}^{}$

$1^2$+$2^2$+$3^2$+...+${10}^2$

cho : \(1^2\)+\(2^2\)+\(3^2\)+...+\(10^2\)= 385
Tính : A=\(100^2\)+\(200^2\)+\(300^2\)+...+\(1000^2\)

168-x/25 + 169-x/23 + 186-x/21 + 199-x/19 = 10

\(\text{(x-1/2)}^0\)=0