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Find the sum 7+7(2)+7(2^2)+...+7(2^9)​
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4 votes
Find the sum 7+7(2)+7(2^2)+...+7(2^9)​

User Elmue
by
6.7k points

1 Answer

3 votes

Answer:

7161

Explanation:

7 + 7(2) + 7(2)² + ... + 7(2)⁹

= ∑₁¹⁰ 7(2)ⁿ⁻¹

= 7 (1 − 2¹⁰) / (1 − 2)

= 7161

User Olalekan Ajayi
by
6.5k points
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