Question

qual é o trigésimo termo da P.A (4,,10,..)

Answer 1

$P.A (4,10,...)\\\\ a_1=4\\ r=10-4=6\\ n=30\\ a_{30}=?\\ \\a_n=a_1+(n-1).r\\\\ a_{30}=4+(30-1).6\to \\ a_{30}=4+29.6\to \\ a_{30}=4+174\to \\ \boxed{a_{30}=178}$