What additional information specifically do you need?

Define the following two power series: tn +1 zn B+(z) = [ [ ("*') tn + 1 Et(z) = (tn+1)^-1 -z n! n>0 Prove the following equation: xr Et(z)" lim Bxt(z/x)* X-> Hints Given: We are allowed to use the following theorems/identities without proof (but not a must to use any of them, and not a must to use all of them): rzn B+(z)" = (nt") *. tnts' n n (1-B4(z)) (rin B (z))" Bt(z)" = e'ln B+(2) = { " (- B:(2)") n! n>0 m> 1 Define the following two power series: tn +1 zn B+(z) = [ [ ("*') tn + 1 Et(z) = (tn+1)^-1 -z n! n>0 Prove the following equation: xr Et(z)" lim Bxt(z/x)* X-> Hints Given: We are allowed to use the following theorems/identities without proof (but not a must to use any of them, and not a must to use all of them): rzn B+(z)" = (nt") *. tnts' n n (1-B4(z)) (rin B (z))" Bt(z)" = e'ln B+(2) = { " (- B:(2)") n! n>0 m> 1