maths nth term and quadratic sequence

maths nth term and quadratic sequence

1. In the sequence 2, 4, 6, 8, 10... there is an obvious pattern. Such sequences can be expressed in terms of the nth term of the sequence. In this case, the nth term = 2n. To find the 1st term, put n = 1 into the formula, to find the 4th term, replace the n's by 4's: 4th term = 2 × 4 = 8

2. Finding the nth term of a linear sequence. Sometimes, rather than finding the next number in a linear sequence, you want to work out the number, or the number. ... To find the value of any term in a sequence, use the term rule.

3. A quadratic sequence is a sequence for which the th term is a n 2 + b n + c .