Ultr...!Lớp 5 mà cứ đi lm lớp trên , xong sai hết luôn!

Mà đề bài còn cho j ko b??

Nhìn giống sách Movers quá ha, mà lần sau để đề đầy đủ nhé ! để zậy có thánh mới làm được ;-;

lạy e

• Camon cậu!!~ =))

con lạy bố

Bài 2: Chọn C

Bài 4: 

a: \(\widehat{C}=180^0-80^0-50^0=50^0\)

Xét ΔABC có \(\widehat{A}=\widehat{C}< \widehat{B}\)

nên BC=AB<AC

b: Xét ΔABC có AB<BC<AC

nên \(\widehat{C}< \widehat{A}< \widehat{B}\)

Spanish, chắc chắn 

\(a.A=\left(\dfrac{x}{x^2-4}+\dfrac{1}{x+2}-\dfrac{2}{x-2}\right):\left(1-\dfrac{x}{x+2}\right)\left(đk:x\ne\pm2\right)\)

\(=\left[\dfrac{x}{x^2-4}+\dfrac{x-2}{x^2-4}-\dfrac{2\left(x+2\right)}{x^2-4}\right]:\left(\dfrac{x+2}{x+2}-\dfrac{x}{x+2}\right)\)

\(=\dfrac{x+x-2-2x-4}{x^2-4}:\dfrac{x+2-x}{x+2}\)

\(=\dfrac{-6}{\left(x+2\right)\left(x-2\right)}.\dfrac{x+2}{2}\)

\(=\dfrac{-3}{x-2}\left(1\right)\)

\(b.\) Thay x = 2023 vào (1), ta được:

\(\dfrac{-3}{2023-2}=-\dfrac{3}{2021}\)

\(c.\) Để A là một số nguyên thì \(x-2\inƯ_{\left(-3\right)}\)

Vậy x - 2 có các giá trị sau:

\(\left[{}\begin{matrix}x-2=1\\x-2=-1\\x-2=3\\x-2=-3\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=3\\x=1\\x=5\\x=-1\end{matrix}\right.\)

I’m sure most of us know about the famous cartoon Tom and Jerry. This is also one of my favorite movies. The film tells about two characters cat Tom miserable and the mouse Jerry is mischievous and clever. These are 2 enemies living in a house. Tom’s owner is afraid of a mouse, so she makes Tom chase Jerry away. Tom the cat wants to be rewarded with delicious food so he often chases Jerry. However, Jerry is an intelligent mouse. He often causes Tom miserable and failure in his missions. Whenever Jerry is bored, he also teases Tom by stealing milk or plucking him … Most of the episodes are Jerry’s pranks with Tom that make viewers laugh. After all, Tom and Jerry are still good friends. This is a world-famous cartoon and is one of the symbols of the film industry. I this film very much.