Question

18)Determinar o 51° termo da PA(4,10,16...)
a) 304
b) 303
c) 302
d) 301
e) 300​

Answer 1

PA(4, 10, 16,...)

a₅₁ = ?      r = 6

aₙ = a₁ + (n - 1).r

a₅₁ = 4 + (51 -1).6

a₅₁ = 4 +50.6

a₅₁ = 4 + 300

a₅₁ = 304

Alternativa a) 304