detectwildfirehotspots.Becausethecamerasareusedinremoteareaswherethereislittleorno electricity,thesystemissolarpoweredandusesmicrowavetransmission(传送),whichdoesn?t requirecables(电缆). Thesystem assists140,000forestrangers,grassland managers,conservationistsand researchersinSichuan.Initsfirstfivemonthsofoperations,i...
To help students remember the formulas for sin θ, cos θ, and tan θ, teachers usually use the following acronyms: soh: sineoppositehypotenuse cah:cosineadjacenthypotenuse toa:tangentoppositeadjacentDelve deeper with these trigonometry lessons
The inverse function of a trigonometric function is called trigonometric function. It is given by arcsin(sinx)=sin(arcsinx)=x. Its output is generally given in radians. The trigonometric expression used: sin2x+cos2x=1. Answer and Explanation: 1 Become a Study...
Why exactly is this useful in the real world? What are the sin, cos, and tan buttons on my calculator for? (And how do they work?) When might I ever actually want to calculate the sine or cosine something? Those, obviously, are all very important (and very reasonable) questions to a...
$\cos \left( {{270}^{\circ }} \right)=0$ Hence, the cosine of 270 degrees is 0. For tangent of 270 degrees: We are well aware of the identity that $\tan \theta =\dfrac{\sin \theta }{\cos \theta }$ Thus, we can write ...
解析 【解析】本题考查不定代词和特殊疑问句的用法根据It's a lion(这)是一头狮子,用来回答问句; What's=ωhatin s中,is是单数谓语,所以主语也要用单数,this是单数.故选:A. 结果一 题目 【题目】-What's this?-a pencil .A . It'sB . T heyC.I'm 答案 【解析】考查代词辨析.由题,问句中this...
【题目】英汉互译What'sin?7_otan . 相关知识点: 试题来源: 解析 【解析】这是什么?考查英译汉, What1+'Δ ,用于询问物品,is系动词,可翻译为是,this指示代词,这个故答案为这是什么? 结果一 题目 【题目】这个用英语怎么说?What's this? 答案 【解析】in English 结果二 题目 【题目】这个用英语怎么说...
ARCTAN ARCTAS ARCTIC ARCTS ARCTT ARCTU ARCU ARCUA ARCUE ARCUK ARCUP ARCUS ARCV ARCVLSC ARCW ARCWIS ARCYBER ARD ARD1 ARDA ARDAC ARDAR ARDASI ARDAWG ARDB ARDC ▼ Complete English Grammar Rules is now available in paperback and eBook formats. ...
Support for the "locked aspect ratio" flag which changes the behavior of the picture when the user stretches it in Excel. Picture offsets now automatically calculated by default, if new Picture interface is used. Revamped picture insertion interface : Picture method now called NewPicture, and...
Q&A for work Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams What methods can be used to solve ∫π20xtan(x)dx∫0π2xtan(x)dx Ask Question Asked 5 years, 9 months ago Modified 5 years, 9 months ago Viewed ...