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Write Out the Sum k=1n2k+1\sum _ { k = 1 } ^ { n } 2 ^ { k + 1 }

Question 185

Multiple Choice

Write out the sum. Do not evaluate.
- k=1n2k+1\sum _ { k = 1 } ^ { n } 2 ^ { k + 1 }


A) 22+23+24++2n+12 ^ { 2 } + 2 ^ { 3 } + 2 ^ { 4 } + \ldots + 2 ^ { n + 1 }
B) 2+22+23++2n+12 + 2 ^ { 2 } + 2 ^ { 3 } + \ldots + 2 ^ { n + 1 }
C) 2+22+23++2n2 + 2 ^ { 2 } + 2 ^ { 3 } + \ldots + 2 ^ { n }
D) 22+23+24++2n2 ^ { 2 } + 2 ^ { 3 } + 2 ^ { 4 } + \ldots + 2 ^ { n }

Correct Answer:

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