Question

Numa pg a1=5 e q =2 determine o oitavo termo da pg​

Answer 1

$a_{8} =a_{1} \cdotp q^{7} =5\cdotp 2^{7} =640$

Answer 2

Resposta:

$a_8=640$

Explicação passo a passo:

$a_n=a_1.q^n^-^1\\\\a_8=a_1.q^8^-^1\\\\a_8=a_1.q^7\\\\a_8=5.2^7\\\\a_8=5.128\\\\a_8=640$