Let (a,) be the sequence defined by a¡ = 5 and a, = 2a,-1 – 3 when n > 2. What is a4?

Q: Find two different explicit formulas for the sequence {1, -2, 3, -4, -5, ⋅ ⋅ ⋅}.

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Q: Which term of the arithmetic sequence 1, 9, 17, 25, ... is 345? It is the th term.

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Q: Find the sum of the first 21 terms of the arithmetic sequence given by the formula a₁ = n + 5 O 273…

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Q: Which sequence has a common difference of -3? 28, 25, 22, 19, … 22, 25, 28, 31, … -99, 33, -11,…

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Q: Write the arithmetic rule of the sequence for the nth term 9, 13, 17, 21,... O 4+ 9(n - 1) An + 6

A: To find the nth term of the sequence: 9,13,17,21.. Solution: We know, the nth term an of an…

Q: What is a sequence?

A: A sequence is a list of things in order.

Q: 6. What are the terms ao, a1, a2, and az of the sequence {an} where an equals а. (-2)" b. 3 c. 7+ 4"…

A: We have to find a0 , a1 , a2 , a3 of given sequences.