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Mathematics, 23.10.2020 21:10 daymakenna3

Fill in the blanks in the following proof (in attachment), which shows that the sequence defined by the recurrence relation f_{k}=f_{k-1} +2^{k} for each integer k ≥ 2
satisfies the following formula. for every integer n ≥ 1
Proof (by mathematical induction):
Suppose f_{1}, f_{2}, f_{3}, ... is a sequence that satisfies the recurrence relation for each integer k ≥ 2, with initial condition f_{1}=1.
We need to show that when the sequence f_{1}, f_{2}, f_{3}, ... is defined in this recursive way, all the terms in the sequence also satisfy the explicit formula shown above.
So let the property P(n) be the equation f_{n}=2^{n+1}-3. We will show that P(n) is true for every integer n ≥ 1.


f_{1} =1
f_{n}=2^{n+1}-3
f_{k}=f_{k-1}+2^{k}
Fill in the blanks in the following proof (in attachment), which shows that the sequence defined by

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