Find the first five terms of the sequence. an=-n2+2n

The first five terms of the given sequence is 1, 0, -3, -8, -15

Step-by-step explanation:

Given: nth term of sequence

We have to find the first five terms of the given sequence,

Consider the given nth term of sequence

Substitute n = 1 ,

we get,

Substitute n = 2 ,

we get,  

Substitute n = 3,

we get,

Substitute n = 4 ,

we get  

Substitute n = 5 ,

we get  

Thus, first five terms of the given sequence is 1, 0, -3, -8, -15