Which of the following represents the series? −13 + (−7) + (−1) + 5 + 11      b    c    d

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

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Q: 2+5+8+11+...293

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Q: Find the sum of the first ten terms of the arithmetic series A1=7, d=-3

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Q: 2(-ャ) n=2

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Q: Find the formula for the sequence below: -5,15,-45,180,...   a an=-3(-5)n-1 b an=5(3)n-1 c…

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Q: 3a + 6ab = 18ab² What is a?

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Q: find the sum of the first 25 terms of an arithmetic series if t12=-26 and t22=-46

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Q: n-3/4+n+5/7=5/14

A: Given:

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Q: Find the sum: -5+-8+-11+...+-23 Answer:

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Q: List the first four terms of each sequence. an bn = -8n +9: = =(5)n. C₁ = 2, Cn = 2Cn-1 +1:

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Q: a =(−1)²¹ (n − 10)₂ - What is the 9th term of the sequence n

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Q: nature-ef luwingserier and the Sum- 20 2-52. い=D

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Q: Evaluate (",) for n = 48.

A: Combination formula : nCr = n!/(n-r)!r!

Q: 2Fn>Fn+1 for n>3 true or false?

A: Given,       2Fn>Fn+1 for n>3