Question

determine o trigesimo termo da PA(1,8,15)

Answer 1

$<var>Termo Geral: a_n=a_1+(n-1)\cdot r</var>$

 

$<var>a_{30}=1+29\cdot 7\Rightarrow a_{30}=1+903=904</var>$

Answer 2

 

 a30=1+29*7

a30=1+902

a30=904