Asked by jinie
find the common difference in an arithmetic sequence in which a(sub 15)-a(sub7)=-1.
what should i start with ??
what should i start with ??
Answers
Answered by
Damon
you add the difference 8 times to go from 7th to 15th
8 * difference = -1
difference = -1/8
8 * difference = -1
difference = -1/8
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