作者gn02335338 (阴氢阳氧)
看板trans_math
标题[考古] 中兴97
时间Tue Jul 7 15:35:38 2009
有几题不太会..
3.Solve the differential equation dy/dx+ytanx = secx
6.The region bounded by y=cosx 0<=x<=pi/2 and the line y=k 0<=k<=1 is reolved
about the line y=k generating a solid S.Determine k so the S has (a)mximum
volume and (b)minimum volume
7.find the value of the constant C for which the integral
无限大 x C
S ( ----- - -----)dx
0 x^2+1 3x+1
converges.Evaluate the integral for this value of C
8.Find the maximum and minimum values of z=y^2-x^2 on the set bounded by the
closed triangle with vertices (0,0) (1,2)and(2,-2)
麻烦大家了@@中兴後天就要考了Q____Q
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