y=lncosx的导数是-tanx。导数（Derivative），也叫导函数值。又名微商，是微积分中的重要基础概念。当函数y=f（x）的自变量x在一点x0上产生一个增量Δx时，函数输出值的增量Δy与自变量增量Δx的比值在Δx趋于0时的极限a如果存在，a即为在x0处的导数，记作f’（x0）或df（x0）/dx。导数是...
百度试题 结果1 题目The derivative of y = sin(x) is ___. A. cos(x) B. -cos(x) C. sin(x) D. -sin(x) 相关知识点: 试题来源: 解析 A。根据求导公式,sin(x)的导数是 cos(x)。选项 B、C、D 都不符合。反馈 收藏
A. cos(x) B. -cos(x) C. sin(x) D. -sin(x) 相关知识点: 试题来源: 解析 A。根据求导公式,sin(x) 的导数是 cos(x)。选项 B 是 cos(x) 的相反数。选项 C 是原函数。选项 D 是 -sin(x),不符合求导结果。反馈 收藏
tanx=sinxcosx cotx=cosxsinx 3)cscx=1sinx,among others. Answer and Explanation:1 Let us find the derivative ofy=sec(x). Let's redefine the function as a function of cosine. Thus we have {eq}y = \dfrac{1}{\cos x}... ...
Solution Share Step 1 Given y=1+sin(X)cos(X) Derivative with respect X on both sides dydx=ddx(1+sin(X)cos(X)) Explanation: The above derivative is in the form ofView the full answer Step 2 Unlock Step 3 Unlock Answer UnlockPrevious question Next questionNot...
y = 3 \csc(x) + 5 \cos (x) Evaluate the derivative of f(x). f(x) = cos2(x)e sec(x) State the derivative of the function. y = \csc x What is the derivative of the trigonometric function sin x? Use the product rule to find the derivative of the given function. \\ f(x...
Answer to: Find the derivative. y = tan(arcsin x) By signing up, you'll get thousands of step-by-step solutions to your homework questions. You can...
代数输入 三角输入 微积分输入 矩阵输入 y=sin(x)+x 求解y 的值 y=sin(x)+x 图表
=[2cos(x+Δx/2)sinΔx/2]/Δx,其中Δx 趋于 0. =cos(x+Δx/2)•[sin(Δx/2)/(Δx/2)],其中Δx 趋于 0. 因为当Δx 趋于 0 时,sinΔx/Δx=1. 所以原式=cos(x+Δx/2),其中Δx 趋于 0,所以原式等于 cosx。 综上,sinx 的导数为 cosx。 导数(Derivative)是微积分中的重要基础...
If y= cos ax and yn is n^(th) derivative of y, then |{:(y,y1,y2),(y3,y4,y5),(y6,y7,y8):}| is equal to