The power series ∑n=0∞an(x−a)n\sum_{n=0}^{\infty} a_n (x-a)^n∑n=0∞an(x−a)n is centered at which value?
x=1x = 1x=1
x=ax = ax=a
x=0x = 0x=0
x=−ax = -ax=−a