The sum of a geometric series formula is .
Where is first term and r is common ratio.
(Substitute )
(Subtract denominator: )
Apply multiplication property of equality: If a = b then .
(Multiply each side by 0.5)
(Cancel common terms)
(Evaluate power: )
(Subtract: )
(Multiply: )
Apply division property of equality: a = b then .
(Divide each side by 0.984375)
(Cancel common terms)
(Divide: )
The 2nd term of the geometric series .
The value of .
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