Find the sum of the first 21 terms of the arithmetic sequence given by the formula a, =n+5 O 320 O 336 O 273 O 63

Q: Use an=a1+(n-1)d and gn=g1re-1 to find: the 59th term of the arithmetic sequence 20, 16, 12, 8 . .…

A: Our aim is to find the 59th term of the arithmetic sequence given below:-20,16,12,8.....        -(i)

Q: Write the first four terms of the sequence whose general term is given an = (-1)n+1/2n +1

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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: The first five terms of the sequence an = 5(-1/10)n-1

A: We need to find the first five terms of the sequence an = 5(-1/10)^(n-1)

Q: Identify the 7th term of the sequence: 4, 20, 100, .... * O 65,200 315,200 O 62,500 O 312,500

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Q: Find the sum of the first 109 terms in the sequence with a1=-3 and d=5.

A: Given  First term a1=−3 Common difference d=5 number of terms n=109

Q: Find the 6th term of the arithmetic sequence 4, 7, 10, ... Answer:

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Q: Find the first 5 terms in the following sequence: a1 = 23, an = an 1+7, n> 2

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Q: zu 00{ " + uc}

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Q: write the next three of the given sequence 1, 1/3, 1/9, 1/27, __, __, __,

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Q: Find the sum of the first 6 terms of the sequence defined by an = -7 (-4)n-1 for n 2 1 5733 O 28 O -…

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Q: Find the indicated term of the arithmetic sequence a1 = 5, d= 3, a4= ?

A: Given First term a1=5Common difference d=3

Q: Find the sum of the first 97 terms of the arithmetic sequence: 0, -4, –8, –12,-16,... Answer:

A: It is given that,the arithmetic sequence:    0,-4,-8,-12,-16,...... We have to find sum of first 97…

Q: Write the first six terms of the sequence defined by a1 = −2, a2 = 3, an= −2 + an−1for n ≥ 3.

A: It is given that, first term of the sequence is (a1) = -2, second term (a2) = 3 and the sequence is

Q: Find the sum of the first fifty terms of the sequence: 5, - 2, - 9, -16, .. O - 275 O - 338 O 8,575…

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Q: Write the first five terms of the sequence defined by the explicit formu 2(n-1)! n(n + 5) an

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.