Limits at positive and negative infinity | Limits and infinity | Khan Academy

When taking a limit at infinity, you can either go right to positive infinity or left to negative infinity. ... There is nothing wrong with your thinking. The lim x->-∞ = +2/3 Here is a more mathematical way of thinking about these limits. If you multiply...

真的，你家的貓...該減肥了~

XD ...

你也會不小心點到IE瀏覽器嗎？

...

90 的人都只數得出三個F~你也是嗎？

奇怪，我第一次才數到三個...(試看看) 做這個測驗之前記得只能看一次!數一下，在下面的短文裡數有幾個FFINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS&...

【恐怖】你知道兵馬俑的頭是怎麼掉的嗎...

...