[考古] 高大96
7.Find (b) ∫(x+4) / x(x-2)(x+5) dx
算出來是 -2lnx/3 + 3ln(x-2)/5 + ln(x+3)/15
答案對嗎？...不太會這種類型的題目@@
5.(a) Find the volume of the solid generated by revolving the region
between the y-axis and the curve x=2/y , 1≦y≦4 , about the y-axis.
(b)The region in the first quadrant enclosed by the parabola y=x^2 ,
the y-axis and the line y=1 is revolved about the line x=3/2 to
generate a solid. Find the volume of the solid.
9.Find the area of the region that lies inside the circle r=1 and
outside the cardioid r=1-cosθ.
煩請各位大大幫忙講解..........感謝
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