Question

qual o 40 termo da PA (2,13,24,35...)

Answer 1

$a_n=a_1+(n-1)\cdot r$

$a_{40}=2+(40-1)\cdot11$

$a_{40}=2+39\cdot11$

$a_{40}=2+ 429$

$\boxed{\boxed{ a_{40}=431}}$