PastExamLabPastExamLab

成功大學 102 年度 微積分

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110
Find the limit: limx0x2sin(1/x)tanx\lim\limits_{x \to 0} \frac{x^2 \sin(1/x)}{\tan x}.
210
Find the limit: limx[xx2ln(1+1x)]\lim\limits_{x \to \infty} [x - x^2 \ln(1 + \frac{1}{x})].
312
Give ln(x2+y2)+2arctanxy=0\ln(x^2 + y^2) + 2 \cdot \arctan \frac{x}{y} = 0, find the values of dydx\frac{dy}{dx} and d2ydx2\frac{d^2y}{dx^2} when x=0x = 0 and y=1y = 1.
410
Evaluate 0π2cosx1cosxdx\int_0^{\frac{\pi}{2}} \cos x \sqrt{1 - \cos x} \, dx.
510
Evaluate xln(1+x2)dx\int x \cdot \ln(1 + x^2) \, dx.
612
Evaluate 02x2x1+y3dydx\int_0^2 \int_x^2 x \sqrt{1 + y^3} \, dy dx.
712
Use polar coordinates to combine the sum
224x2xx1y2dydx+2220xx1y2dydx+224016x2x1y2dydx\int_{\sqrt{2}}^2 \int_{\sqrt{4-x^2}}^x x^{-1} y^2 \, dy dx + \int_2^{2\sqrt{2}} \int_0^x x^{-1} y^2 \, dy dx + \int_{2\sqrt{2}}^4 \int_0^{\sqrt{16-x^2}} x^{-1} y^2 \, dy dx
into one double integral. Then evaluate the double integral.
812
Show that n=2ln(11n2)\sum\limits_{n=2}^{\infty} \ln(1 - \frac{1}{n^2}) converges and finds its sum.
912
Find the local maximum and minimum values and saddle point(s) of the function
f(x,y)=x3+y3+3x23y28f(x,y) = x^3 + y^3 + 3x^2 - 3y^2 - 8
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