有心事說出來聽聽
Formulas from Calculus - Radford University | Virginia | Best in the Southeast一個男人心情沉重地在酒吧喝酒.....服務生:先生?!心情不好嗎?有心事說出來聽聽嘛!男人:我是同性戀服務生:那又怎樣?男人:我哥哥也是同性戀服務生:.......男人:更糟的是,我弟弟也是服務生:..........難道你家沒人喜歡女人?男人:有!我妹.......有個女人死了老公....她的好友Formulas from Calculus Derivatives d dx [x n] = nxn 1 d dx [e x] = ex d dx [sinx] = cosx d dx [c] = 0 d dx [b x] = bx lnb d dx [cosx] = sinx d dx [x] = 1 d dx [lnx] = 1 x d dx [tanx] = sec2 x d dx h 1 x i = 1 x2 d dx [log b x] = 1 xlnb d dx [secx] = tanxs...
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