anyone who has studied the course differential equations ?

Question

anonymous · Answer

doing so now actually

anonymous · Answer

have u done taylor series solution for differential equations ?

anonymous · Answer

yes, but i'm having some trouble with it. maybe we can figure it out together

anonymous · Answer

$$y \prime \prime + ( \sin x ) y \prime + ( \cos x )y = 0    ;      y(0)=0 ,       y \prime(0)= 1$$

anonymous · Answer

Ok :) Here's the question please help me :(

anonymous · Answer

i'm not too sure when it's regarding trig stuff, we haven't really gotten into that. what we've done is always do $$y = \Sigma (AnX^n)$$, then take the first and second derivatives of it. after, plug it all back int the original equation.

anonymous · Answer

yes, but isn't this for the power series ? :s

anonymous · Answer

i'm not sure how to find it without going through the power series. and even at that, i think it'd be messy :(

anonymous · Answer

oh :(