sin x cos x 1

這不就是龜..

12月 14, 2011

林若綠

kuso

Derivatives of sin x, cos x, tan x, e^x and ln x | Derivatives of common functions | Khan Academy這不就是龜..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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陰屍路系列的結婚蛋糕...

1月 18, 2012

范姜映梅

kuso

*Simplify Trig Expressions: Sin(x)/(1+ Cos(x)) + Cos(x)/Sin(x) - YouTube踩著別人的屍體得到幸福... 這...好別緻!! 這是離婚蛋糕吧! 是推他還是拉他? A http://www.door2math.com production.Sin(x)/(1+ Cos(x)) + Cos(x)/Sin(x)...

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舔咪咪 ~ 我笑著舔咪咪

12月 11, 2011

葉迎蓮

kuso

Trig Identities: cos^2(2x) + sin^2(2x), os^2(x)-1/sin(x),舔咪咪 ~ 我笑著舔咪咪Too bad your notation is not clear enough. If you mean for the entire expression to be in the numerator, you will need to write it like this: [cos^2(x)-1]/sin(x) = [1-sin^2(x)-1]/sin(x) = -sin^2(x)/sin(x) = -sin(x) And, really, what do you have against th...

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最新角色扮演 Angry Bird 真實版

12月 14, 2011

蔡涵天

kuso

1. Graphs of y = a sin x and y = a cos x - Interactive Mathematics - Learn math while you play with 最新角色扮演 Angry Bird 真實版!!1. Graphs of y = a sin x and y = a cos x by M. Bourne The Sine Curve y = a sin t The sine curve occurs naturally when we are examining waves. When waves have more energy, they go up and down more vigorously. We say they have greater amplitude. Let's ......

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你給我差不多一點

12月 14, 2011

連元柳

kuso

Unit Circle and Trigonometric Functions sin(x), cos(x), tan(x) 左一，誰准你在那邊給我搔首弄姿，賣弄風騷？The relationships between the graphs (in rectangular coordinates) of sin(x), cos(x) and tan(x) and the coordinates of a point on a unit circle are explored using an applet. Definitions 1- Let x be a real number and P(x) a point on a unit circle such that ...

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【國外創意T恤】同理，也可以改成公司每天都操我嗎……

12月 14, 2011

彭靜菱

kuso

Integration of trig functions: int sin^2 x cos^4 x dx【國外創意T恤】同理，也可以改成公司每天都操我嗎……\int sin^2xcos^4xdx \int(1-cos^2x)(cos^4x) \int(cos^4x-cos^6x)dx \cos^2 x = \frac {1 + \cos 2x}2 \frac{1}{2}\int cos^4xdx-\frac{1}{2}\int cos^6xdx...

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