好玩！

三角身份审查/乐趣

我已经制作了一些视频来记录我所要教授的知识在这个视频中我要讲一下三角恒等式录制这个视频是因为我需要复习一下学过的知识因为我要做些微积分的问题这需要先了解三角学知识我现在有更好的录制软件了所以想一举两得录制视频也算是在脑子里重新复习一下知识这些三角恒等式假设大家已经了解了因为我已经做过关于它们的视频了并且视频中提到了一些记忆和证明的方法 sin(a+b)等于 sina...

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#好玩！

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See Through & Fun Thermal Camera Experiments

So you guys can see my cat is in the background there obviously the heat of my cat is more prominent over the surrounding area How the camera works is, obviously it's going to pick up the...

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#camera works #hot olympians #Caught My Eye #things to see #fun! #vision tech #see. #Nightvision #seethrough #lunettes de vue #see through dress #Fun & Entertainment #T-shirts & Apparel #fun.dom #not not fun #Science & Technology

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