tolong jawab no 2 dong

Dik : a=3
b:2
dit=un
Jawab= Un= a+(n-1).b
=3 + 2012 x 2
=3 + 2024
=2027

Mkasih

Beda = a2 - a1
= 5 - 3 = 2
a2013 = a + 2012. b
= 3 + 2012.2
= 3 + 4024
= 4027