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本经验通过函数的定义域、单调性、凸凹性、极限和奇偶性等性质，介绍函数用导数工具画函数y=x^3-4x的图像的主要步骤。 根据函数特征，函数自变量可以取全体实数，即定义域为： ( …

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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) \lim _{x\to 0}(x\ln (x)) \int e^x\cos (x)dx \int_{0}^{\pi}\sin(x)dx

Graph the line using the slope and the y-intercept, or the points. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions …

Find the y-intercepts. Tap for more steps... List the intersections. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions …

You just have to solve system y=x^3-4x x = y^3-4y by substitution. You get a 9th degree polynomial, and thus there are at most 9 intersections. By substituting we get x = (x^3-4x)^3 …

2016年9月1日 · First, I use elimination to obtain $(x_1,y_1)$, and $(x_2,y_2)$. For $y=x^3-4x$, I set $x_1 = t$, then $y_1=t^3-4t$. For $x=y^3-4y$, I set $y_2 = t$, then $x_2=t^3-4t$. Then I …

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