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1 vote
Write the explicit equation for the sequence 5,8,11,14

User Joe Warner
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1 Answer

3 votes
Consecutive terms differ by 3, so


a_n=a_(n-1)+3=a_(n-2)+2*3=a_(n-3)+3*3=\cdots=a_1+(n-1)*3

Since the first term is
a_1=5, the formula for the sequence is


a_n=5+3(n-1)=3n+2
User JGK
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