sum of first 6 terms of an arithmetic sequence is 54 and sum of first 11 terms is 209 write the sequence.
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Answer:
-1,3,7,11,15,19,23,27.....
Step-by-step explanation:
in terms of 6terms
6a+15d=54
2a+5d=18.
in terms of 11 terms
a+5d=19
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