How to find recurrence relation and closed form formula for the sequence 5,-10,20,-40,80,-160,320,….

Question : In this solution, we will explain how to find recurrence relation and closed form formula for the sequence 5,-10,20,-40,80,-160,320,…..Solution :We have given sequence5,-10,20,-40,80,-160,320,…..Carefully examining the sequence, we can see that next term is two times of it’s previous…

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