Name: Recursive sequences: solution walkthrough
Uploaded: 2026-11-13
Duration: 1 min 22 s
Description: The first term of a sequence is a_1 = 3. Each term after the first is 1 less than twice the term before it, so… Try it, then watch the animated solution.

Problem 29 of 34fun-029

The first term of a sequence is $a_1 = 3$ . Each term after the first is $1$ less than twice the term before it, so $a_{n+1} = 2a_n - 1$ . What is $a_5$ ?

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Solution walkthrough1:22