For the same series with $a = 1$ and $b = \dfrac{1}{3}$, the sum to infinity is —

Question

Accepted Answer

$\dfrac{3}{2}$

Answer

$\dfrac{1}{3}$

Answer

$\dfrac{2}{3}$

Answer

$3$

For the same series with a=1a = 1a=1 and b=13b = \dfrac{1}{3}b=31​, the sum to infinity is —