Question 4. For the following two initial value problems, we cannot guarantee that a power series solution centered at x=0 exists since x=0 is not a regular point. However, in some cases, we may still be able to find one anyway, even if we can't guarantee it will work beforehand.(i)xy''y=0,y(0)=1,y'(0)=0(ii)x2y''-2xy'2y=0,y(0)=0,y'(0)=2For one of the above equations, we can still find a solution esing power series centered at x=0, and for the other we cannot. Which is which?