WebPrecalculus Examples. Rewrite csc(x) csc ( x) in terms of sines and cosines. Rewrite cot(x) cot ( x) in terms of sines and cosines. Multiply by the reciprocal of the fraction to divide … WebSep 2, 2024 · 老黄在某平台发表过这样的一个视频作品。证明余切cotx的导数是-(cscx)^2,并且提供了三种证明方法,可见老黄有多用心,结果却被平台的审核人员以答案错误,与主流答案不一致为由拒绝了,实在是太气人了。不讲出这个平台的名字,不是害怕什么,只是不想给他们做广告。
Tangent, Cotangent, Secant, and Cosecant - Dartmouth
WebSep 18, 2015 · -1 (cotx+cscx)(cotx−cscx) =(cot^2x-csc^2x) =(cos^2x/sin^2x - 1/sin^2x) =(cos^2x-1)/sin^2x =-(1-cos^2x)/sin^2x =-sin^2x/sin^2x =-1 WebAug 2, 2016 · Adding (1) & (2) we get. 2cscx = 2 ⇒ cscx = 1 = csc( π 2) ∴ x = π 2. Again Subtracting (2) from (1) 2cotx = 0 ⇒ cotx = 0 = cot( π 2) ∴ x = π 2. For cotx = 0 = cot(3 π 2) then x = 3 π 2 but this does not satisfy the given equation as sin(3 π 2) = −1. So only solution is x = π 2. shuff io
Solve cotx/cscx=cos(x) Microsoft Math Solver
WebSep 17, 2015 · cscx是sinx的倒数,即cscx=1/sinx。. secx是cosx的倒数,即secx=1/cosx、. 三角函数是基本初等函数之一,是以角度为自变量,角度对应任意角终边与单位圆交点 … WebOct 5, 2024 · 一味背图、填图是乏味的。应根据人和动物共有的反射机制,对信息源做恰当处理。采用多办法刺激,以获得运动记忆和情绪记忆的最佳效果。把抽象的地图符号化 … WebThe range of cscx is the same as that of secx, for the same reasons (except that now we are dealing with the multiplicative inverse of sine of x, not cosine of x).Therefore the range of cscx is cscx ‚ 1 or cscx • ¡1: The period of cscx is the same as that of sinx, which is 2….Since sinx is an odd function, cscx is also an odd function. Finally, at all of the points … shuffies