This expression is asking for the option which represents the given formula.
the 6 on top simply means everything has to be repeated six times
then the n = 1 means you should represent n in the formula with ( 1, 2,3,4, 5,6 )
when my n = 1 then my formula will look like this
[tex]\frac{n}{2n\text{ + 1}}\text{ = }\frac{1}{2(1)\text{ + 1}}\text{ = }\frac{1}{2+\text{ 1}}\text{ = }\frac{1}{3}[/tex]when my n = 2, then my formula will be:
[tex]\frac{n}{2n\text{ + 1}}\text{ = }\frac{2}{2\text{(2) + 1}}\text{ = }\frac{2}{4\text{ + 1}}\text{ = }\frac{2}{5}[/tex]this way i will also check when my n is 3, 4,5,6 and find which option suit my answers. The corresponding option so far is option B which is chosen.