1.求下列各微分方程的通解:-|||-(1) ''=x+sin x ;-|||-(2) ^m=x(e)^x ;-|||-(3) ''=dfrac (1)(1+{x)^2} =-|||-(4) ''=1+y'2 :-|||-(5) ^n=y'+x ;-|||-(6) ''+y'=0 ;-|||-(7) (y)^11+2(y)^12=0 ;-|||-(8) ^3(y)^n-1=0 ;-|||-(9) ^n=dfrac (1)(sqrt {y)}-|||-(10) ''=((y'))^3+y' .