Question

Hei! Am si eu nevoie va rog frumos de exercitiul 2 . chiar nu stiu sa-l fac. multumesc frumos.​

Answer 1

La a) fiindca s a putut simplifica prin 11, este clar ca e fractie reductibila

Answer 2

$\it a)\ \ \dfrac{6\cdot5^n+5^{n+1}}{12^{n+1}-12^n}=\dfrac{6\cdot5^n+5^n\cdot5}{12^n\cdot12-12^n}=\dfrac{5^n(6+5)}{12^n(12-1)}=\dfrac{\ \ 5^n\cdot11^{(11}}{12^n\cdot11}=\dfrac{5^n}{12^n}$