Question

Determine o décimo termo da PG 1, 2, 4

Answer 1

$PG(1,2,4,...)\\ \\\\ a_{n} =a_{10} =?\\\\a_{1} =1\\\\n=10\\\\q=2\\\\\\a_{n} =a_{1} * q^{n-1} \to \\\\ a_{10} =1 * 2^{10-1} \to \\\\ a_{10} =1 * 2^{9} \to \\\\ a_{10} =1 * 512 \to\\\\ a_{10} =512$