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台灣大學 109 年度 微積分(C)

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PastExamLab Summary
題數
10
題
總分
100
分
已整理詳解
100%
10 / 10 題
主要題型
Applications of integration 3 題Derivatives of multi-variable functions 2 題The Limit of a Function 1 題Derivatives 1 題

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不得使用計算機,每題 10 分,總分 100 分。
第 1 題10 分The Limit of a Function
lim⁡x→∞2x−11x=?\lim\limits_{x \to \infty} \frac{\sqrt[x]{2} - 1}{\frac{1}{x}} = ?
第 2 題10 分Derivatives
Find f′(2)f'(2) if f(x)=eg(x)f(x) = e^{g(x)} and g(x)=∫4x211+t3dtg(x) = \int_4^{x^2} \frac{1}{1+t^3}dt.
第 3 題10 分Parametric equations and polar coordinates
Trochoid x=2θ−sin⁡θx = 2\theta - \sin \theta, y=2−cos⁡θy = 2 - \cos \theta. Find the tangent line of the curve at θ=π2\theta = \frac{\pi}{2}.
第 4 題10 分Applications of integration
Trochoid x=2θ−sin⁡θx = 2\theta - \sin \theta, y=2−cos⁡θy = 2 - \cos \theta. Find the area under the curve and above the xx-axis for 0≤θ≤2π0 \leq \theta \leq 2\pi.
第 5 題10 分Applications of integration
Let the region RR be enclosed by the curves y=x2y = x^2 and y=2−x2y = 2 - x^2. Find the volume of the solid obtained by rotating the region RR about x=1x = 1.
第 6 題10 分Applications of integration
Let the region RR be enclosed by the curves y=x2y = x^2 and y=2−x2y = 2 - x^2. Find the arc length of the region RR.
第 7 題10 分Multiple integrals
Evaluate ∬Rcos⁡(y−xy+x)dA\iint_R \cos\left(\frac{y-x}{y+x}\right)dA where RR is the trapezoidal region with vertices (1,0)(1,0), (2,0)(2,0), (0,2)(0,2) and (0,1)(0,1).
第 8 題10 分Derivatives of multi-variable functions
Let f(x,y)=x4+y4−4xy+1f(x,y) = x^4 + y^4 - 4xy + 1. Find local maxima, local minima, and saddle points of f(x,y)f(x,y).
第 9 題10 分Derivatives of multi-variable functions
Find the absolute maximum value and absolute minimum value of f(x,y)=x4+y4−4xy+1f(x,y) = x^4 + y^4 - 4xy + 1 on the disk x2+y2≤1x^2 + y^2 \leq 1.
第 10 題10 分Differential equations
Solve the differential equation xy′=y+x2sin⁡xxy' = y + x^2 \sin x with y(π)=2πy(\pi) = 2\pi.