0 votes 0 votes Find the sum to $n$ terms of the series $10+84+ 734 +\dots $ $\dfrac{9(9^n+1)}{10}+1 \\$ $\dfrac{9(9^n-1)}{8}+1 \\$ $\dfrac{9(9^n-1)}{8}+n \\$ $\dfrac{9(9^n-1)}{8}+n^2$ Quantitative Aptitude gate2013-ee numerical-ability arithmetic-series + – piyag476 asked Feb 11, 2017 retagged Mar 7, 2021 by Lakshman Bhaiya piyag476 1.5k points answer comment Share See all 0 reply Please log in or register to add a comment.