Question

What are the first three of the sequence with the nth term

Answer 1

Answer:

n = 1 2 3 4 5

n² = 1 4 9 16 25

n²+1 = 2 5 10 17 26

This is the required sequence, so the nth term is n² + 1. There is no easy way of working out the nth term of a sequence, other than to try different possibilities.

Answer 2

Answer:

a,a+d,a+2d are the three sequence of nth term we can further find it using(a+(n-1)d)