1000+1011=??
Ai làm đc mk tik
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Giải như sau:
(-5)*(x+1)>0
=> -5*x-5>0
=>-5*x>5
=>x<-1
Vậy x<-1
\(329.x=329:x\)
\(\Leftrightarrow329.x=329.\frac{1}{x}\)
\(\Leftrightarrow329.x-329.\frac{1}{x}=0\)
\(\Leftrightarrow329\left(x-\frac{1}{x}\right)=0\)
\(\Leftrightarrow x-\frac{1}{x}=0\)
\(\Leftrightarrow\frac{x^2-1}{x}=0\)
\(\Rightarrow x^2-1=0\)
\(\Leftrightarrow\left(x-1\right)\left(x+1\right)=0\)
\(\Rightarrow\orbr{\begin{cases}x-1=0\\x+1=0\end{cases}}\Rightarrow\orbr{\begin{cases}x=1\\x=-1\end{cases}}\)
A long time ago, there was a fox and a crow. The crow stood on the roof of a house with a piece of meat in its beak. The hungry fox was standing on the ground. The fox asked the crow, "Can you give me some meat? The crow shook its head. Then the fox asked, "Can you dance?" The crow shook its head. Then the fox asked, "Can you sing" "Yes,..." the crow opened his beak and said. He dropped the meat on the ground. The fox picked up the meat and said, "Ha ha! Thanks for the meat.".
329 x X = 329 : X
Vì 329 x 0 = 329 : 0
Hay 329 x 1 = 329 : 1
Nên X = 0, 1
Trả lời
1000+1011=2011
Đáp số 2011
~Hok tốt~
bằng 2011 nha