Question

Exercițiile 22/b și 23/a,b,c va rog

Answer 1

22. b) $\frac{ 2^{n}* 7^{n+1}* 14^{n+1}- 14^{n} }{ 2^{n+2}* 7^{n}+ 14^{n}}= \frac{ 2^{n}*(7*14)^{n+1}-14 ^{n} }{2^{n+2}*7^{n}+14^{n} } = \frac{2^{n}*98^{n+1} -14^{n} }{2^{n+2}*7^{n}+14^{n} }$