matlab(1-x)*y''=0.2*sqrt(1+y'^2) 输入y=dsolve('(1-x)*D2y-0.2*sqrt(1+(Dy)^2)=0',

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matlab(1-x)*y''''=0.2*sqrt(1+y''^2)输入y=dsolve(''(1-x)*D2y-0.2*sqrt(1+(Dy)^2)=0'',matlab(1-x)*y''''=0.2*sqrt

matlab(1-x)*y''=0.2*sqrt(1+y'^2) 输入y=dsolve('(1-x)*D2y-0.2*sqrt(1+(Dy)^2)=0',
matlab(1-x)*y''=0.2*sqrt(1+y'^2) 输入y=dsolve('(1-x)*D2y-0.2*sqrt(1+(Dy)^2)=0',

matlab(1-x)*y''=0.2*sqrt(1+y'^2) 输入y=dsolve('(1-x)*D2y-0.2*sqrt(1+(Dy)^2)=0',
dsolve('(1-x)*D2y-0.2*sqrt(1+(Dy)^2)=0')
ans =
C22 + t*i
C22 - t*i
C22 - cosh(C20 - t/(5*(x - 1)))*(5*x - 5)