Question

Ache o 35° termo de cada PA a) (9,15,21) b) (3,10,17,24)

Answer 1

$\begin{array}{l}a) \ r=a_{2} -a_{1} =15-9\Longrightarrow r=6\\\\a_{35} =a_{1} +34r=9+34\cdotp 6\Longrightarrow \boxed{a_{35} =213}\\\\b) \ r=a_{2} -a_{1} =10-3\Longrightarrow r=7\\\\a_{35} =a_{1} +34r=3+34\cdotp 7\Longrightarrow \boxed{a_{35} =241}\end{array}$