Question

Calcule o 27° termo da seqüencia (7/8, 11/8, 15/8,...)

Answer 1

An=A¹+(n-1)×r

$an = \frac{7}{8} + (27 - 1) \times \frac{4}{8} \\ an = \frac{7}{8} + 26 \times \frac{4}{8} \\ an = \frac{7}{8} + \frac{104}{8} \\ an = \frac{111}{8}$