Question

Dada a P.A (28,36,44,...) ,Determine seus. Décimo nono termo

Answer 1

$> resolucao \\ \\ \geqslant o \: 19 \: termo \: da \: pa \: (28.36.44...) \\ \\ r = a2 - a1 \\ r = 36 - 28 \\ r = 8 \\ \\ \\ an = a1 + (n - 1)r \\ an = 28 + (19 - 1)8 \\ an = 28 + 18 \times 8 \\ an = 28 + 144 \\ an = 172 \\ \\ \\ > < > < > < > < > < > < >$