Asked by joe
hi
if the second term of a sequence is root(2) and the seventh term is 8 what is the nth term equation(Geometric sequence)
thanks
if the second term of a sequence is root(2) and the seventh term is 8 what is the nth term equation(Geometric sequence)
thanks
Answers
Answered by
Steve
ar = √2
ar^6 = 8
ar^6/ar = r^5 = 8/√2 = (√2)^6/√2 = √2^5
so, r= √2, a=1
Tn = ar^(n-1) = √2^(n-1)
ar^6 = 8
ar^6/ar = r^5 = 8/√2 = (√2)^6/√2 = √2^5
so, r= √2, a=1
Tn = ar^(n-1) = √2^(n-1)
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