sin 3x cos 3x

大嬸的絕技，小朋友別亂學！ 稳稳低 . . . .

2月 7, 2012

蔡爾容

kuso

sin(x)[sin(3x) + sin(5x)] = cos(x)[cos(3x) - cos(5x)] - YouTube大嬸的絕技，小朋友別亂學！ 稳稳低 . . . .PreCalculus - Trigonometry: Trig Identities (42 of 57) Prove [sinx+sin(5x)]/[cosx+cos(5x)]=tan3x - Duration: 2:07. Michel van Biezen 639 views...

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使用電腦需知

2月 7, 2012

何新冬

kuso

Complex Numbers and Trigonometric Identities - Sin 3x and cos 3x - YouTube   你知道麼嗎？保護自己的隱私是很重要的事情！De Moivre's theorem is used to express sin3x in terms of sinx and cos3x in terms of cosx....

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沒看過這麼敷衍的運動員

2月 6, 2012

林凝晴

kuso

Derivative of Sin 3x - Solve Math Easily 你可以在敷衍一點沒關係!In calculus, the derivative is a measure of how a function changes as its input changes. The process of finding a derivative is called differentiation. Differentiation is a method to compute the rate at which a dependent output y changes with respect to t...

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這些動物你惹不起啊

2月 6, 2012

張易旋

kuso

Handout - Derivative - Chain Rule & Sin x Cos x ex ln(x Power-Chain Rule a,b are constants. Function             這隻猴子好欠揍阿!  Exercises Find the derivatives of the expressions a) 7cos 2x2 +5x+9 b) 8cos 5x3 +5x2 +2 c) 5cos x3 +3x2 +1 d) 7cos 7x2 +1 e) 6sin 4x4 +4cos(3x) 3 f) 7sin 9x2 +5cos 6x5 4 g) 8sin 6x4 +cos 8x4 3 h) 4sin 8x4 +cos 8x2 4 i) 7sin(4x)+6cos 6x4 5 2 j) 7sin(5x)+9c...

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義大利什麼都是斜的...

2月 6, 2012

范姜慕秋

kuso

Introduction to Limits in Calculus - Free Mathematics Tutorials, Problems and Worksheets (with apple   在義大利什麼都斜了起來XDAn introduction, with definition, to limits in calculus with examples and solutions. ... We intend to give a numerical and graphical approaches to the concept of limits using examples. Numerical Approach to Limits Example 1: Let f(x) = 2 x + 2 and compute...

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這好像好好笑XD

2月 6, 2012

謝語蘭

kuso

Math Forum: Ask Dr. Math FAQ: Trigonometry Formulas        也太像了吧!!XD[Back to Contents] Inverse Trigonometric Functions x = Arcsin(y) ==> y = sin(x), - /2...

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