SOLUTION: The question is asking for the rule for the nth term for this sequence: (-5, 10, -15, 20, ...)
I can't figure out how to get alternating postive and negative numbers.
-25
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Question 142676This question is from textbook McDougal Littell Algebra 2
: The question is asking for the rule for the nth term for this sequence: (-5, 10, -15, 20, ...)
I can't figure out how to get alternating postive and negative numbers.
-25: an = -5n^(???) is among the many ideas I have tried.
(an means "a sub n")
This question is from textbook McDougal Littell Algebra 2
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
how about an=5n[(-1)^n]