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The first four terms in the sequence are 4, 9, 16 and 25.
Given that, the nth term of the sequence is 1 (n + 1)².
We need to find the first four terms in the sequence.
In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters.
To find the first four terms of the sequence, replace n=1, 2, 3 and 4.
Now, when n=1
1(1+1)²=1×4=4
When n=2
1(1+2)²=1×9=9
When n=3
1(1+3)²=1×16=16
When n=4
1(1+4)²=1×25=25
Therefore, the first four terms in the sequence are 4, 9, 16 and 25.
To learn more about the sequence visit:
https://brainly.com/question/21961097.
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