Question

determine o decimo termo da P.G ( 1,2,4...)

Answer 1

$a_1 = 1 \\ q = 2 \\ a_{10} = \,? \\ \\ a_n = a_1.q^{n-1} \\ \\ a_{10} = 1.2^{10-1} \\ \\ a_{10} = 2^9 \\ \\ a_{10} = 512$