Find the Sum of the Finite Geometric Sequence $\sum _ { n = 1 } ^ { 7 } 2 ^ { n - 1 }$

question 28

Multiple Choice

Find the sum of the finite geometric sequence. $\sum _ { n = 1 } ^ { 7 } 2 ^ { n - 1 }$

• A)43
• B)22
• C)127
• D)63
• E)31

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