The power series sigma n 1 to infinity Cn X 42 it divides a

The power series sigma n = 1 to infinity C_n (X- 4)^2 it divides at X = 7 Which answer is true? R GE 7 R LE 3 R GE 3 at x = 0 does itsconverges or diverges at x = 1 does itsconverges or diverges at x = 4 does its converges or diverges

Solution

if it diverging at X=7

the radius of convegrence is less than equal to 3.

Centre is X=4