0.5n(n+1)
yes
Wow you really can't spell.
1, 3, 6, 10, ... The nth term is n*(n+1)/2
It is an expression used in the context of sequences and refers to a way of expressing any term in the sequence using an index or counter. It is often called the nth term.
nth term = 5 +8n
0.5n(n+1)
yes
Wow you really can't spell.
The nth term is 6n+1 and so the next term will be 31
Sn = 3n2 + 2n - 8
1, 3, 6, 10, ... The nth term is n*(n+1)/2
In the study of sequences, given a number n, the position to term rule tells you how the nth term of the sequence is calculated.
It is an expression used in the context of sequences and refers to a way of expressing any term in the sequence using an index or counter. It is often called the nth term.
This is an arithmetic sequence with initial term a = 3 and common difference d = 2. Using the nth term formula for arithmetic sequences an = a + (n - 1)d we get an = 3 + (n - 1)(2) = 2n - 2 + 3 = 2n + 1.
Well, isn't that just a lovely pattern we have here? Each term is increasing by 4, isn't that delightful? So, if we want to find the nth term, we can use the formula: nth term = first term + (n-1) * common difference. Just like painting a happy little tree, we can plug in the values and find the nth term with ease.
123456789 * * * * * The nth term is 3n