e sin cos relation

為了「省錢」才買原廠「認證」中古車，結果不到一個禮拜就「壞東壞西」，難道我是被坑了嗎！？

5月 1, 2017

何海丹

影音

complex analysis - How to prove Euler's formula: $e^{it}=\cos t +i\sin t$? - Mathematics StaisCar! 近年來，不少中古車商與車廠推出所謂「認證中古車」，標榜車輛經過完整檢驗及認證。小明工作一段時間後想要買車代步跑業務，但礙於銀彈不多，所以鎖定購入中古車。某中古車商業務員向小明表示，他們出售的中古車每輛都經過專業技師的嚴格檢定，且有原廠認證。但在交車不到一星期後，小明所購入的「認證車」竟Could you provide a proof of Euler's formula: $e^{it}=\cos t +i\sin t$ ? thanks. ... Assuming you mean $e^{ix}=\cos x+i\sin x$, one way is to use the MacLaurin series for sine and cosine, which are known to converge for all real $x$ in a f...

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BMW X2 『紐柏林賽道』現身，預估2018年正式上市

4月 24, 2017

王映夏

房車

Sine - Wikipedia, the free encyclopediaBMW預計在原有車系中增加一款補足X休旅陣容的X2全新豪華跨界跑旅車系。全新的X2車系預計架構在全新的ULK底盤模組上，而X2車系也會以前驅設定做為主要的驅動模式，且將在高階車型提供『xDrive智慧型四輪驅動』版本，而BMW更表示未來全新X2的量產版本，預估將保留X2 概念車的前衛設計元素。&nbThe inverse function of sine is arcsine (arcsin or asin) or inverse sine (sin-1). As sine is non-injective, it is not an exact inverse function but a partial inverse function. For example, sin(0) = 0, but also sin(π) = 0, sin(2 π) = 0 etc. It follows that...

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小改款 BENZ S CLASS正式發表

4月 21, 2017

謝語竹

房車

Hyperbola - Wikipedia, the free encyclopediaBenz 當家車款S-Class 目前在上海車展正式發表改款車型，這次改款後，S-Class的車身造型大部分還是維持與舊款相似的格局設計。而S-Class頭燈組的設計加上三道日形燈條外，也提供Multibeam LED頭燈組、Ultra Range主燈選配套件等等，照明距離可以達到650m遠距。&nThe shape of a hyperbola is defined entirely by its eccentricity e, which is a dimensionless number always greater than one. The distance c from the center to the foci equals ae. The eccentricity can also be defined as the ratio of the distances to either...

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動力再升級！BMW M4 CS 極速上路！

4月 25, 2017

王映夏

房車

Sin^2(x) | Article about Sin^2(x) by The Free Dictionary期待已久的的 M4 CS終於在上海車展中耀眼登場了，有鑒於GTS目前已停止生產，這款CS將為BMW接下來性能最優越的M4車型。這款新車有何不同之處呢？就先從引擎開始談起吧，BMW 這回將以往熟悉的 3.0L 直列六缸雙渦輪引擎做了優化，現在擁有 454匹馬力和 61.2公斤扭力，比起原本標準版 M4Trigonometric Function Trigonometric functions make up one of the most important classes of elementary functions. Figure 1 To define the trigonometric functions, we may consider a circle of unit radius with two mutually perpedicular diameters A’A and B’B ...

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FORD FOCUS黑潮焦點版 限量上市，重新型塑運動新風格

4月 26, 2017

黃如筠

房車

Uncertainties and Error Propagation - Rochester Institute of Technology限量款「Ford Focus 黑潮焦點版」即將於5月4日發表，以帥氣黑白配色新登場，內裝增添炫紅飾線座椅，內外兼修酷炫升級。更換上極具運動感的勁黑型格鋁圈，將以奪目外型席捲國內車壇。此次「Ford Focus 黑潮焦點版」外觀選用皓月白為主色，搭配沉穩洗鍊的全黑車頂及車側後視鏡、7. Significant Figures The rules for propagation of errors hold true for cases when we are in the lab, but doing propagation of errors is time consuming. The rules for significant figures allow a much quicker method to get results that are approximately c...

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LUXGEN 全新跨界 SUV，預計年底在台搶先上市！

4月 26, 2017

梁寒瑤

房車

Right Triangles - Clark University | Challenge Convention. Change Our World.Luxgen在 2017上海車展首度發表全新跨界休旅車款，官方雖尚未替這款 SUV概念車命名，據悉定位於 U6 車系中，年底將在台灣以U5之名發表。外觀上，從車頭的造型可推敲是以S3架構作為基礎，頭燈組的尾端設計延長至車身，車尾部分則呈現時下流行的類Coupe造型，並使用了金屬字Solving right triangles We can use the Pythagorean theorem and properties of sines, cosines, and tangents to solve the triangle, that is, to find unknown parts in terms of known parts. Pythagorean theorem: a 2 + b 2 = c 2. Sines: sin A = a/c, sin B = b/c....

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