Answers

2016-07-13T23:51:52+08:00
Formula an=a1(n-1)d
3 7 11 15 19 this given is basic given you know

paano gawen

a1 = 3
d= 4
An =19

an= a1+(n-1)d
3+(19-1)4
3+(18)4
3+72
=72




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