素顏也好美!原來Lady Gaga起床長這樣
Derivatives of sin x, cos x, tan x, e^x and ln x | Product and quotient rules | Khan Academy這幾年來社交網站Instagram大流行,許多明星也不吝於在網站上分享他們的生活。而其中最讓人津津樂道的就是這些明星的素顏照,許多「天生麗質」的大明星紛紛在Instagram上放上他們剛起床或是未出門的素顏照,美麗的照片似乎在想粉絲們宣告:「老娘底子好,素顏沒在怕的啦!」 是的,這是Lady GagHere is a proof of the derivative of sin x. d/dx (sin x) = lim h→ 0 (1/h) [sin(x+h) - sin (x) ] _by definition of derivative_. _Using the angle sum identity: sin(x+h) = sin(h) cos(x) + cos(h) sin(x)_ d/dx(sin x) = lim h→ 0 (1/h) { sin(h) cos(x)+cos(h) sin...
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