1111 + 1234 

= 2345%

@Trunglaai?

=2345%

A policeman always keeps a gun with himself.

• A policeman always wears his clean uniform on duty.
• A policeman is a disciplined person.
• A policeman has the duty to catch thieves.
• A policeman solves our fight problems.
• A policeman stops crime.
• A policeman is a brave man.

1. A policeman hardly gets holidays or rest.

The police are a constituted body of persons empowered by a state, to enforce the law, to ensure the safety, health, and possessions of citizens, and to prevent crime and civil disorder. Their lawful powers include arrest and the use of force legitimized by the state via the monopoly on violence. The term is most commonly associated with the police forces of a sovereign state that are authorized to exercise the police power of that state within a defined legal or territorial area of responsibility. Police forces are often defined as being separate from the military and other organizations involved in the defense of the state against foreign aggressors; however, the gendarmerie is military units charged with civil policing. Police forces are usually public sector services, funded through taxes.

Law enforcement is only part of policing activity. Policing has included an array of activities in different situations, but the predominant ones are concerned with the preservation of order. In some societies, in the late 18th and early 19th centuries, these developed within the context of maintaining the class system and the protection of private property. Police forces have become ubiquitous in modern societies. Nevertheless, their role can be controversial, as they may be involved to varying degrees in corruption, brutality, and the enforcement of authoritarian rule.

7 giờ 32 phút x 4 = 9 giờ 8 phút
 

30 giờ 8 phút

đầy người em ạ, kb xong là quen nhau hết ấy mà. Lần sau em kh nên đăng linh tinh lên đây nữa, kh thì sẽ bị báo cáo 

không

Trong tiếng Anh, ngoài việc dùng “No problem” để nói “Không sao đâu” mà chúng ta vẫn biết, còn rất nhiều cách nói khác rất thú vị, các bạn cùng học và áp dụng nhé! No problem: Không có gì đâu. You're welcome: Không có gì đâu. Sure thing: Mọi thứ rất ổn.

Nghĩa : Không sao đâu.

0,4 x 2 x 3,14 

= 0,8 x 3,14 

= 2,512 

\(\left(x^2-4\right)\left(x^2-10\right)-72=\left(x^2-7+3\right)\left(x^2-7-3\right)-72=\left(x^2-7\right)^2-3^2-72\)

\(=\left(x^2-7\right)^2-9^2=\left(x^2-7-9\right)\left(x^2-7+9\right)=\left(x^2-16\right)\left(x^2+2\right)\)

\(=\left(x-4\right)\left(x+4\right)\left(x^2+2\right)\)