1+1 bằng 5
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HT
1
Y
16 tháng 3 2023
Đề bài : \(\dfrac{11}{3}\times\left(\dfrac{1}{5}-\dfrac{1}{2}\right)\le x\le\dfrac{3}{11}\times\left(\dfrac{1}{5}+\dfrac{2}{3}-\dfrac{1}{2}\right)\)
\(\dfrac{11}{3}\times\left(\dfrac{1}{5}-\dfrac{1}{2}\right)=\dfrac{11}{3}\times\left(-\dfrac{3}{10}\right)\)\(=-\dfrac{33}{30}=-\dfrac{11}{10}\)
\(\dfrac{3}{11}\times\left(\dfrac{1}{5}+\dfrac{2}{3}-\dfrac{1}{2}\right)=\dfrac{3}{11}\times\dfrac{11}{30}=\dfrac{33}{330}=\dfrac{1}{10}\)
\(\Rightarrow\dfrac{-11}{10}\le x\le\dfrac{1}{10}\)
Vậy \(x\in\left\{-\dfrac{11}{10};-\dfrac{10}{10};-\dfrac{9}{10};-\dfrac{8}{10};-\dfrac{7}{10};-\dfrac{6}{10};-\dfrac{5}{10};-\dfrac{4}{10};-\dfrac{3}{10};-\dfrac{2}{10};-\dfrac{1}{10};0;\dfrac{1}{10}\right\}\)
9 tháng 11 2021
Me and Minh Anh have been close friends since childhood. Minh Anh's figure is high, your chubby, full face is also lovely. Dark skin tone. Long hair. The black eyes are always open and round like two marbles. The upturned nose and wide smile always reveal two shiny white teeth. In Minh Anh, everyone is dynamic, confident, witty and funny, very likable. Minh Anh is good at Math, and I'm good at Literature. Therefore, we often support each other to study well. Me and Minh Anh play together very comfortably. I hope that when we grow up, we will still be best friends like we are now.
NM
4
NC
8 tháng 8 2020
Bài làm:
a) \(\frac{x}{x+5}+\frac{5}{x+5}=\frac{x+5}{x+5}=1\left(x\ne-5\right)\)
b) \(\frac{x^2}{x-1}-\frac{2x-1}{x-1}=\frac{x^2-2x+1}{x-1}=\frac{\left(x-1\right)^2}{x-1}=x-1\left(x\ne1\right)\)
HT^^
8 tháng 8 2020
a) \(\frac{x}{x+5}+\frac{5}{x+5}=\frac{x+5}{x+5}=1\)
b) \(\frac{x^2}{x-1}-\frac{2x-1}{x-1}=\frac{x^2-2x-1}{x-1}\)
Bài đây tính hẳn bạn??
NT
5
1+1=5 ?????? what
phải là 1+1=2 mới đúng nha bro_------
.,l.,.,.,,/..
1+1=5-3