Math, asked by arghasaha2016, 3 months ago

4/ The first term of an arithmetic progression is 2 and the sum of the first 12 terms is 618.
Find the common difference.

Answers

Answered by kl654916

1

Answer:

7odyorr7to7to7f7ofo7gl7glgl7to7gl7gl7gl7gl7to7l7fl7tl7fl7flf6t7ltlglugugltltlutylyluyuyluy77y

8y8ly8ly8lyl8yl8yl8ylyl7gilgljglgip

Answered by hakimsarah75

5

Step-by-step explanation:

a=2

S12=618

S12=n/2[2a+(n-1)d]

618=12/2[2(2)+11d]

618=6[4+11d]

103=4+11d

103-4=11d

99=11d

9=d

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