Question

qual e o décimo da PG (1 2 4 8 16)

com a resolução da conta pra favor!!​

Answer 1

$PG \ (1, 2, 4, 8, 16...)\\\\a_1 = 1\\q = \frac21 = 2\\n = 10\\\\a_n = a_1 \cdot q^{n-1}\\a_{10} = 1 \cdot 2^{10-1}\\a_{10} = 1 \cdot 2^{9}\\a_{10} = 1 \cdot 512\\\boxed{a_{10} = 512}$