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Write Out the Sum k=1n7k+1\sum _ { k = 1 } ^ { n } 7 ^ { k + 1 }

Question 33

Multiple Choice

Write out the sum. Do not evaluate.
- k=1n7k+1\sum _ { k = 1 } ^ { n } 7 ^ { k + 1 }


A) 7+72+73++7n+17 + 7 ^ { 2 } + 7 ^ { 3 } + \ldots + 7 ^ { n + 1 }
B) 7+72+73++7n7 + 7 ^ { 2 } + 7 ^ { 3 } + \ldots + 7 ^ { n }
C) 72+73+74++7n7 ^ { 2 } + 7 ^ { 3 } + 7 ^ { 4 } + \ldots + 7 ^ { n }
D) 72+73+74++7n+17 ^ { 2 } + 7 ^ { 3 } + 7 ^ { 4 } + \ldots + 7 ^ { n + 1 }

Correct Answer:

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