oops it first order DE not linear DE
Hi again
subject:first order linear DE
Using variable separable method,
I have no idea on how to start on these 3 problems, please guide me.
a)dy/dx=(2-y)(2+y),y(0)=-1
b)dy/dx=y(y-1),y(0)=2
c)dy/dx=(y-2)(y-4),y(0)=3
are they solve using the same method? so even if y move to other place,it does not change the method of solving?Thanks in advance
I guess you mean you have
Now, you need to integrate
If you cannot see how to do that immediately, use substitutions- in the first let u= 2- y and in the second, u= 2+ y.
May I ask what level course this is? Integration by partial fractions and substitution usually come fairly early in a Calculus course- certainly earlier than solving differential equations!
it basic calculus for university it for engineering degree the thing is ,it sometimes very confusing,these questions are from DE so when i intergrate it it become 1/4 ln|2-y|+1/4 ln |2+y| = x + c then how i can do so ithat i can make c the subject to find it value?