What are the following symbols used in math sequences: a sub i, n, N?
ai is the ith element of the sequence
n is the value of i in the term you are refering to. For instance, 3,4,5,6 a3 is 5. That term corresponds to n=3
N is the number of terms in the sequence.
To understand the symbols used in math sequences, let's break them down:
1. "a sub i" (ai): In a math sequence, "a sub i" represents the ith element of the sequence. Each element in the sequence is typically denoted by a1, a2, a3, and so on. For example, a1 may represent the first element, a2 the second element, and so forth. The subscript "i" specifies the position or index of the element in the sequence.
2. "n": In the context of math sequences, "n" represents the value of "i" in the term you are referring to. It is commonly used to specify a specific position within the sequence. For instance, if you have a sequence like 3, 4, 5, 6, then a3 would represent the third term in the sequence, which is 5. Here, "n" would be equal to 3.
3. "N": The symbol "N" typically refers to the number of terms in a sequence. It represents the total count of elements in the sequence. For example, if you have a sequence of 10 elements, you would say that "N" is equal to 10.
In summary, "a sub i" represents the ith element of the sequence, "n" represents the specific position within the sequence, and "N" represents the total number of terms in the sequence.