% Ulesanded 13, ylesanne 5
syms y(x);
vorrand=diff(y,x,2)-2*diff(y,x)==0
yldlahend=dsolve(vorrand)

% ylesanne 6
vorrand2=diff(y,x,2)+4*diff(y,x)+4*y==0
yldlahend2=dsolve(vorrand2)
Dy=diff(y,x);
erilahend2=dsolve(vorrand2,[y(0)==1,Dy(0)==0])

% ylesanne 7
vorrand3=diff(y,x,2)-6*diff(y,x)+13*y==0
yldlahend3=dsolve(vorrand3)