Asked by may
                The second term of an arithmetic progression is 8 and the eleventh term is -10 Find the first term, the common differrnce and sum to 15 terms
            
            
        Answers
                    Answered by
            Steve
            
    the two terms are 9d apart. So, d = -2
Now you have d, and can easily find a, so
S15 = 15/2 (2a + 14d)
    
Now you have d, and can easily find a, so
S15 = 15/2 (2a + 14d)
                                                    There are no AI answers yet. The ability to request AI answers is coming soon!
                                            
                Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.