Question

a) 10 termos da p.a (5,9,13,..) b) 32 termos da p.a (17,11,5,..)

Answer 1

a )an = a1+ (n-1).r
an = 5 + 10-1. 4
an = 5 + 9.4
an = 5 + 36
an = 41

b) an= 17 + 10-1. 6
an = 17 + 9.6
an = 17 + 54
an = 71