Enterbot3 Posted October 23, 2018 Report Share Posted October 23, 2018 The second term of an arithmetic sequence is 7. The sum of the first four terms of the sequence is 12. Find the first term, a, and the common difference, d, of the sequence. [5 marks] Reply Link to post Share on other sites More sharing options...
prerna Posted October 23, 2018 Report Share Posted October 23, 2018 I solved it below using the 2 equations from the data booklet for arithmetic sequences and then solved using systems of linear equations. Hope it helps! Documentos escaneados.pdf 1 Reply Link to post Share on other sites More sharing options...
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