Asked by thulani
determine the arithmetic sequence that has the seventh term equal to 3 and the twelfth term equal to -3
Answers
Answered by
Steve
a+6d = 3
a+11d = -3
clearly, 5d = -6, so d = -6/5
that means a = 51/5
a+11d = -3
clearly, 5d = -6, so d = -6/5
that means a = 51/5
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