Question

write A = {1,5,10,17,26} in Set - builder form

Answer 1

x belongs to n^2+1 - {2}; n belongs to whole numbers.

Answer 2

Let's say A = {2,5,10,17,26}

Our sequence is = the squares + 1

Now formula is

n² +1

Now state Limits

n² +1 where Integer n>0 and n<6

A = {n² +1 where Integer n>0 and n<6}