Question

va rog mult ajutorrr!! am nevoie acum ​

Answer 1

Răspuns:

${3}^{n + 2} - {5}^{n} = {5}^{n + 1} - {3}^{n}$

${3}^{n + 2} + {3}^{n} = {5}^{n} + {5}^{n + 1}$

${3}^{n} ( {3}^{2} + 1) = {5}^{n} (1 + 5)$

${3}^{n} \times 10 = {5}^{n} \times 6$

${3}^{n} \times 2 \times 5 = {5}^{n} \times 2 \times 3$

n = 1

EOF = 15 × 2 = 30°