Ilovediana Ilovediana

16-03-2017
Mathematics

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Write an equation for the nth terms of the given arithmetic sequence
13,19,25

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apologiabiology apologiabiology

16-03-2017

adding 6 each time and first term is 13

an=a1+d(n-1)
a1=first term
d=common difference

an=13+6(n-1) is the equation for the nth term
f(n)=13+6(n-1) or
f(n)=7+6n

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