The second term of an arithmetic sequence is 7. The sum of the first 4 terms of the arithmetics sequence is 12. What is the first term a1, and the common difference,
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Maths: Difference between Sequence and Series in Tabular Form- (For CBSE, ICSE, IAS, NET, NRA 2024) FlexiPrep
![Maths: Difference between Sequence and Series in Tabular Form- (For CBSE, ICSE, IAS, NET, NRA 2024) FlexiPrep Maths: Difference between Sequence and Series in Tabular Form- (For CBSE, ICSE, IAS, NET, NRA 2024) FlexiPrep](https://www.flexiprep.com/Important-Differences/Mathematics/posts/Maths-Difference-Between-Sequence-and-Series/Examples-of-sequences-and-series.png)