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Question
Difficulty Level:

Easy

MCQ

Complete the recursive formula of the arithmetic sequence 15,11,7,3,-15,-11,-7,-3, \ldots.

Select all that apply :

c(n)=c(n1)+4c(n)=c(n-1)+4

c(n)=c(n1)4c(n)=c(n-1)-4

c(n)=c(n1)+2c(n)=c(n-1)+2

c(n)=c(n1)2c(n)=c(n-1)-2

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