Ciri barisan aritmatika
= + − 1
Beda (b) sama
C o n t o h = − −1 = −
1
2
2013 = 3
2021 = 19 = −
−
2017 ?…
19 − 3 + (2013 − 1)(2) = 3 = −4021 + 4032
= 2017
2021 − 2013 + (2012)(2) = 3 2017 = 11
16
= = 2 + 4024 = 3 +
8 = −4021 =
2013 = 3 2
2017 = −4021 + 2016(2)