Question

if Σ Tr=n/8(n+1)(n+2)(n+3) then find Σ 1/Tr

Answer 1

need some clearer notation

Answer 2

it is given as sum of Tr terms is n/8(n+1)(n+2)(n+3) then find sum of 1/Tr terms

Answer 3

???\[\sum ~T_r~=\frac{n}{8(n+1)(n+2)(n+3)}\]???

Answer 4

ryt

Answer 5

no no (n+1)(n+2)(n+3) are in numerator not in denominator