Radius and interval of convergence of a power series, using ratio test, ex#2

[@RITESHKUMAR-fq6js]

The classic problem on real analysis 🙏very conceptual

[@rushilpunya2552]

I want to be friends with this guy he seems like the nicest person on the planet.

[@davidbrisbane7206]

Seems like ... until he marks your maths exam.

[@mohd1997m]

.... u r brilliant
thanks

[@joelsanderson2021]

would you do x-2=1 and get x = 3 which would mean that the radius is 3 right?

[@فاطمهالجهني-د9ع]

How l can find domain of series of sum !?

[@koustavborah1537]

Nice

[@julianhernandez1936]

Thank you!

[@blackpenredpen]

You're welcome