2016年1月4日 · How do I find the derivative of f (x) = ln(|x|)? This can be split into a piecewise function. f (x) = {ln(x), if x> 0 ln(− x), if x <0. Find the derivative of each part: d dx (ln(x)) = 1 x. …

x^{2}-x-6=0 -x+3\gt 2x+1 ; line\:(1,\:2),\:(3,\:1) f(x)=x^3 ; prove\:\tan^2(x)-\sin^2(x)=\tan^2(x)\sin^2(x) \frac{d}{dx}(\frac{3x+9}{2-x}) (\sin^2(\theta))' \sin(120)

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I have noticed that if you have an equation (after integrating) such as $$\ln|y| = \ln|x| + c,$$ and you further simplify it using the law of exponents, you get $$e^{\ln|y|} = e^{\ln|x|+с},$$ which is …

2016年1月24日 · The typical graph of just #ln(x)# is. graph{ln(x) [-10, 10, -5, 5]} Notice the domain restriction. In #ln(x)#, #x>0#. That is, negative numbers are not in the domain of a logarithmic …

2015年8月14日 · To elaborate on Dr. MV's answer, we can find the derivative of the absolute value function by noting | x | = √x2 and then using the chain rule. The proof goes: d dx√x2 = 1 …

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平方根 sqrt(x) 你可以混合使用以上函数如： " ln(abs( x )) ". 你必须使用规则进行绘制，例如I"2 tan x"可以绘制，但 "tan 2x"不可以绘制。

x_{k+1} = \ln|x_k| 这个数列即不发散也不收敛。 %一个数列 % a_k = ln(abs(a_{k-1})) clc,clear; N = 10000; a = zeros(N,1); a(1) = 10.0001; for k = 2:N a(k) = (log(abs(a(k-1)))); end hold on; …

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