# Find the Sum of the Infinite Geometric Series 1 , 1/2 , 1/4 , 1/8 , 1/16

, , , ,
This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by gives the next term. In other words, .
Geometric Sequence:
The sum of a series is calculated using the formula . For the sum of an infinite geometric series , as approaches , approaches . Thus, approaches .
The values and can be put in the equation .
Simplify the equation to find .
Simplify the denominator.
Write as a fraction with a common denominator.
Combine the numerators over the common denominator.
Subtract from .
Multiply the numerator by the reciprocal of the denominator.
Multiply by .
Find the Sum of the Infinite Geometric Series 1 , 1/2 , 1/4 , 1/8 , 1/16

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