Question

6 Σ n=1 n/2n + 1
Ignore the selected answer, I accidentally clicked, please help

Answer 1

`\begin{array}{l}\sum _(n=1)^(6)(n)/(2n+1) =(1)/(2\cdotp 1+1) +(2)/(2\cdotp 2+1) +(3)/(2\cdotp 3+1) +(4)/(2\cdotp 4+1) +(5)/(2\cdotp 5+1) +(6)/(2\cdotp 6+1)\\\\\sum _(n=1)^(6)(n)/(2n+1) =(1)/(3) +(2)/(5) +(3)/(7) +(4)/(9) +(5)/(11) +(6)/(13)\end{array}`

Answer 2

Answer is the second circle will explain later but the second circle the middle one