What is a4 in a geometric sequence where a2 2 and az = -V2? O 1 O 2 2 O V2

Q: What is a for the sequence a₁ = n² - n? A. a₁ = 8 B. a = 12 C. a = 4 D. a₁ = 16 OA OB OC OD

A: Here is the solution:

Q: Find the sum – 6 + 1 + 8 +... + 15 Answer:

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Q: Evaluate the sum 5+10+20+40+80+...+320, and enter its numerical value.

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Q: this sequence 31 27 23 19. Explain how you can get the next three sequences.

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Q: One term of an arithmetic sequence is a, = -18. The common difference is d=-6. Write a rule for then…

A: We will use the formula for finding the nth term of an arithmetic progression. First of all we will…

Q: What is the degree of the sequence 3, 6, 13, 25, 45, 78, ...? A degree of 1 B degree of 2 C degree…

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Q: Evaluate S10. the sum of the first ten terms of the arithmetic sequence. a, = 3n, a40 = 11a %3D

A: To Evaluate S10 Given:  a1 =3π ,   a10 =11π Let a be first term and d be common difference of…

Q: Find S3 for the sequence: 12, 22, 32, 4², ...

A: Given :                   12,22,32,42,... To find :                 The S8 for the sequence

Q: Find the sum -18 + 54 - 162 + ... -1458

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Q: Find the terms of the sequence an (-1)"2 = n2 a1 a2 || a3 || a 20 a 100 ☐

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Q: I am having trouble solving this problem.  Can you please provide me with some help?  Thank you.  I…

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Q: In an arithmetic sequence, u1 = 2 and u3 = 8. (a) Find d. (2) (b) Find u20. (2) (c) Find S20.

A: Let supposer first term is denoted by a Common difference is denoted by d nth term is given as…

Q: What is a sequence?

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

Q: Given a term and the common difference of an arithmetic sequences, find the explicit equation. a1 =…

A: Given that:a1=5 and d=12

Q: me if a sequence is arithmetic, geometric or neither? G sequence.

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Q: Find the sum 32+33+34+35+...+122+123

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