Question

O 24º termo da PA , é:

Answer 1

$a_{n} =a_{1} +(n-1).r\\\\a_{24} =\frac{1}{2} +(24 -1).(2-\frac{1}{2}) \\\\a_{24} =\frac{1}{2}+\frac{69}{2}\\a_{24} = 35$