巴西騎士現世報，想踹車反犁田 


到底是在搞甚麼？

巴西一名火爆騎士似乎與汽車駕駛發生衝突，於是一追上汽車就是狠踹，沒想到反作用力讓他自己狠狠摔倒，還在馬路滑行，幸好騎士命大沒有受傷，拍拍身體又回到機車旁邊，被網友笑稱現世報。


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A curious connection : What's the function $f(x)$?

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Issue with $int_0^inftyfraccos(x^2)x^2dx$

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Equality of field extensions given Splitting field is $S_n$.

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