最瞎的分手理由 by夏霏
Derivatives of sin x, cos x, tan x, e^x and ln x | Derivatives of common functions | Khan Academy 每到分手旺季,各式各樣的分手理由就如腸病毒般蔓延,面對另一半突如其來的分手要求,什麼樣的理由或藉口是你(妳)最不能接受的? 夏霏說:在我的認定裡,所有的分手理由全都是藉口,差別只在於「瞎」和「超瞎」!腦殘不是病,歹戲拖棚會要人命的啊!且看夏霏揭開這些「超瞎分手理由」的血淋淋OS,就連丁丁都會大喊「Lets say I have an equation sin x = 1/2. Then clearly, x = 30 degrees or pi/6 radians. Now if I differentiate both sides of the equation with respect to x (because both are equal, their derivatives should also be equal), I will have cos x = 0, right? But ...
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