find the nth term of the term of the sequence 8, 4, 2, 1,...

To find any term of a geometric sequence:where a_{1} is the first term of the sequence, r is the common ratio, n is the number of the term to find.

Here a1 = 8

common ratio is 1/2

we have to find nth term .. put the values in the formula

nth term = 8x (1/2)^(n-1)

^ this symbol represents power...

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