2. For each arithmetic series, state the values of a and d. Then, determine the sum of the first 20 terms. a) 5 + 9 +13 + ... b) 20+ 25 + 30 + ... c) 45 +39 + 33 + ... d) 2 + 2.2 + 2.4 + ...

Q: 4) -16 – 8 – 4 - 2.. A) -32 B) -33 D) 2 C) No sum

A: Here, we know that the sum of infinite geometric series if the common ratio is less than one , will…

Q: Let (an)nzo be a sequence defined by an=n2²+5

A: The given sequence is an=n2n+5. We have to find the closed formula for the first difference of the…

Q: What is the 15th term of the sequence -8, -11, -14, -17, ...? A) -44 B) -53 C) -47 D) -50

A: Given sequence is

Q: 2- In an arithmetic series of 50 terms, the 17th term is 53 and the 28th term is 86. Determine, a, d…

A:

Q: 5. Distinguish between a sequence and a series. Use both words and examples to make this…

A: Distinguish between a sequence and a series:

Q: a)For the sequence -1, -7, -13, -19, -25, ... the formula for the sequence is : a¡= L; i= 1, 2, 3,…

A:

Q: Give the next three terms of the sequence. a.) 2,9,16,23,30 b.) 81, 27, 9, 3, 1 c.) 1, 4, 9, 16, 25

A:

Q: a) Given the sequence: 5, 9, 13, 17 ... write a simplified expression for t n._ b) Given the…

A:

Q: a) Find the formula for the arithmetic sequence with n > 1. - 15, – 10, – 5, 0, 5, .. an b) Find the…

A:

Q: Find the sum of the first 6 terms of the given geometric series: -2-4-8-16.. O -146 -139 O 2 O -126

A:

Q: 2.) Write the general formula for un for the arithmetic sequence 12, 4, –4, –12, ...

A:

Q: 7.. Given the values of a and d, write the first three terms of the arithmetic sequence. Then, write…

A: We want to find general term.

Q: Find the sum of the infinite geometric series. If an answer is undefined, write UNDEFINED. - 216/49…

A: To find the sum of the geometric series.