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15-10-2021
Mathematics

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The sequence an =-4+3 a=−4+3(n−1) represents the value of the nth term in a sequence. What is the sum of the 1st and 5th terms of the sequence?

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surjithayer10otahza surjithayer10otahza

19-10-2021

Answer:

4

Step-by-step explanation:

an=-4+3(n-1)=-4+3n-3=3n-7

a1=3×1-7=3-7=-4

a5=3×5-7=15-7=8

a1+a5=-4+8=4

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