Question

Help!!!!!!!!!!!!!!!!

Answer 1

$=\frac{12}{11}+\frac{13}{22}+\frac{14}{33}+...+\frac{110}{1089}-1-\frac{1}{2}-\frac{1}{3}-...-\frac{1}{99}$
$=\frac{12}{11}-1+\frac{13}{22}-\frac{1}{2}+...+\frac{110}{1089}-\frac{1}{99}$
$=\frac{12}{11}-\frac{11}{11}+\frac{13}{22}-\frac{11}{22}+...+\frac{110}{1089}-\frac{11}{1089}$
$=\frac{1}{11}+\frac{2}{22}+...+\frac{99}{1089}$
$=\frac{1}{11}+\frac{1}{11}+...+\frac{1}{11}$
$=\frac{99}{11}=9=3^2$
$\boxed{R:~C}$