.5 + 0.55 + 0.555 + \dots$ to $n$ terms $= \frac... .5 + 0.55 + 0.555 + \dots$ to $n$ terms $= \frac{5n}{9} - \frac{5}{81}(1 - 10^{-n})$ a) + 88 + 888 + \dots$ to $n$ terms... following NCERT curriculum." /> .5 + 0.55 + 0.555 + \dots$ to $n$ terms $= \frac..." /> .5 + 0.55 + 0.555 + \dots$ to $n$ terms $= \frac{5n}{9} - \frac{5}{81}(1 - 10^{-n})$ a) + 88 + 888 + \dots$ to $n$ terms... following NCERT curriculum." />