Question

sabem?
determine o 40° termo de uma P.A.(2,13,24,35,....)

Answer 1

An = a1 + (n-1).r


$An= 2+39.11$
$An= 2+429$
An= 431

Answer 2

$Dados \to \left\{\begin{array}{ccc}a_1 = 2\\r = 11\\a_n = a_{40} = ?\\n =40\end{array}\right$

$Termo \ Geral\to \boxed{a_n = a_1 + (n-1)*r}$

$a_{40} = 2 + (40-1)*11$

$a_{40} = 2+(39)*11$

$\boxed{\boxed{a_{40} = 429 + 2 = 431}}$

Espero ter ajudado. :))