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Đẹp ko mn ơi !!!!
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HV
24 tháng 11 2018
4+4=8
Mị thấy Shinichi nhưng lại theo kid mk cx ko bt mị thấy ai cx ko đẹp trai cả mị thấy mk đz thui
9 tháng 7 2016
Everything is two-faced like the two faces of a coin, and so is watching TV. Watching TV has advantages.
First, it widens our knowledge. Information on TV is diverse, letting the viewers know upto-date news from all fields of life such as news about politics, socioeconomy, scientific- chnology, etc…
Second, TV serves us as a means of relaxation. Films, plays, music shows on TV are vailable all day. We can enjoy these programs at home whenever we like.
Third, it is a good friend helping us kill time. Whenever we feel bored or do not know what to do. Simply turn on your TV set and you will surely feel OK soon. On the other hand, watching TV also has some disadvantages. Bad contents such as violent films, sexual exposures on the screen, and other sensitive topics may dangerously affect children. In addition, Watching TV too much or regularly also takes us much time and badly affects our health, especially our eyes.
Finally, we have to pay some extra money for electricity consumption, too. In short, watching TV, which may be good or bad, depends on the way we use TV to serve our life.
First, it widens our knowledge. Information on TV is diverse, letting the viewers know upto-date news from all fields of life such as news about politics, socioeconomy, scientific- chnology, etc…
Second, TV serves us as a means of relaxation. Films, plays, music shows on TV are vailable all day. We can enjoy these programs at home whenever we like.
Third, it is a good friend helping us kill time. Whenever we feel bored or do not know what to do. Simply turn on your TV set and you will surely feel OK soon. On the other hand, watching TV also has some disadvantages. Bad contents such as violent films, sexual exposures on the screen, and other sensitive topics may dangerously affect children. In addition, Watching TV too much or regularly also takes us much time and badly affects our health, especially our eyes.
Finally, we have to pay some extra money for electricity consumption, too. In short, watching TV, which may be good or bad, depends on the way we use TV to serve our life.
24 tháng 7 2020
- Có vì :
- Để một số có căn bậc hai số học thì số đó phải lớn hơn hoặc bằng 0 .
Ta có : \(2\sqrt{3}-\sqrt{6}-1\)
\(=\sqrt{2}\sqrt{6}-\sqrt{6}-1\)
\(=\sqrt{6}\left(\sqrt{6}-1\right)-1\)
Ta thấy : \(\left\{{}\begin{matrix}\sqrt{6}>\sqrt{5}\\\sqrt{6}-1>1\end{matrix}\right.\)
=> \(=\sqrt{6}\left(\sqrt{6}-1\right)>\sqrt{5}\)
Mà \(\sqrt{5}-1>0\)
=> \(2\sqrt{3}-\sqrt{6}-1>0\)
Vậy ...
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Cảm ơn nha!!!!!!!!!!!!!!!!!!!!!!!!!