下學期期中考 沒答案喔 因為我還沒修看無
1.y=2xy'+(y^2)(y'^3) please solve y(x)
2.given a curve C:y=x^2, please find a member of the family of involutes of C.
3.xy(y'')-x(y'^2)=x√(y^2+y'^2) please find y(x)
4.((5x+1)^2)y''+(25x^2-65x-14)y'+75y=0 please find the series solution of
y(x) at x=-1/5
5.送分 題目出錯的樣子
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