Question

determine o termo geral P.A [2,7,...]

Answer 1

$> resolucao \\ \\ \geqslant progressao \: aritmetica \\ \\ r = a2 - a1 \\ r = 7 - 2 \\ r = 5 \\ \\ \geqslant o \: termo \: geral \: da \: pa \\ \\ an = a1 + (n - 1)r \\ an = 2 + (n - 1)5 \\ an = 2 + 5n - 5 \\ an = 5n - 3 \\ \\ > < > < > < > < > < > < >$