驗證網址math.stackexchange.com安全性

calculus - How to prove that $\lim\limits_{x\to0}\frac{\sin x}x=1$? - Mathematic

Here you may see an elementary approach that starts from a very interesting result, see this problem. All you need is a bit of imagination. When we take $\lim_{n\rightarrow\infty} \frac{n\sin(\frac{\pi}{n})}{1+\sin(\fra...

網址安全性掃描由 google 提供


夏季熱浪來襲,擁有萬象色彩點綴才顯狂放!本季PONY將繽紛的Funny Color翻轉一夏,讓潮流冒險的玩酷元素放肆出「青春玩樂園」的沁夏風格! 7月將推出Missy姐姐鞋及多款新品陸續推出,歡迎所有喜愛PONY的粉絲,一起翻玩出專屬自己的夏日玩樂風。越是鮮豔玩色,越能開心快樂,青春世代就是要揮灑...

全文閱讀