Which expression can be used to find the next term of the sequence 1,4,9,16,...? Is it 2n, n+3, n²+1, or n²
According to the problem:
when n = 1, the answer is 1
when n = 2, the answer is 4
when n = 3, the answer is 9
when n = 4, the anser is 16, etc.
Try each of the possibilities:
n = 1 ---> 2n = 2 ---> n + 3 = 4 ---> n² + 1 = 2 ---> n² = 1
n = 2 ---> 2n = 4 ---> n + 3 = 5 ---> n² + 1 = 5 ---> n² = 4
Which one works?
According to the problem:
when n = 1, the answer is 1
when n = 2, the answer is 4
when n = 3, the answer is 9
when n = 4, the anser is 16, etc.
Try each of the possibilities:
n = 1 ---> 2n = 2 ---> n + 3 = 4 ---> n² + 1 = 2 ---> n² = 1
n = 2 ---> 2n = 4 ---> n + 3 = 5 ---> n² + 1 = 5 ---> n² = 4
Which one works?