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Given an arithmetic sequence whose first term is a, last term is l and common difference is d is:
The series of partial sums, Sn, is given by
Sn = 1/2*n*(a + l) = 1/2*n*[2a + (n-1)*d]
Wiki User
∙ 9y ago
Wiki User
∙ 8y agosum = ½ n (2a + (n - 1)d) = ½ n (first + last)
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How do arithmetic and geometric sequences compare to continuous functions?
an arithmetic sequeunce does not have the sum to infinty, and a geometric sequence has.
What is the formula for the general term of the arithmetic sequence?
an = a1 + d(n - 1)
What is the sum of a 14-term arithmetic sequence where the last term is 30 and the common difference is -5?
875
What is a infinite arithmetic sequence?
It is an arithmetic sequence for which the index goes on and on (and on).
How do you calculate the sum of all numbers from 1 through 100?
The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.
What is the difference between an arithmetic series and an arithmetic sequence?
An arithmetic sequence is a list of numbers which follow a rule. A series is the sum of a sequence of numbers.
How do arithmetic and geometric sequences compare to continuous functions?
an arithmetic sequeunce does not have the sum to infinty, and a geometric sequence has.
The sum of the first 5 terms of an arithmetic sequence is 40 and the sum of its first ten terms is 155what is this arithmetic sequence?
a1=2 d=3 an=a1+(n-1)d i.e. 2,5,8,11,14,17....
What if the second terms of an arithmetic sequence is 5 find the sum of 1st and 3rd term?
sequence 4 5 6 sum =10 sequecnce 0 5 10 sum=10
What is the sum of a 54term arithmetic sequence where the first term is 6 and the last term is 377?
10,341
What is the sum of the first ten terms of the arithmetic sequence 4 4.2 4.4...?
49
What is the formula for the general term of the arithmetic sequence?
an = a1 + d(n - 1)
What is the history of a arithmetic sequence?
origin of arithmetic sequence
What is the sum of a 14-term arithmetic sequence where the last term is 30 and the common difference is -5?
875
What is a infinite arithmetic sequence?
It is an arithmetic sequence for which the index goes on and on (and on).
How do you calculate the sum of all numbers from 1 through 100?
The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.
What is the sum of the first 12 terms of the arithmetic sequence?
The sum of the first 12 terms of an arithmetic sequence is: sum = (n/2)(2a + (n - 1)d) = (12/2)(2a + (12 - 1)d) = 6(2a + 11d) = 12a + 66d where a is the first term and d is the common difference.
