Question

In a sequence, an = n²-1 then An+1 is equal to
A a²–5n
B) n2-2n
C) a +10n
D) n +20​

Answer 1

Answer:

answer is (B) n2-2n please mark as brainlest

Answer 2

Answer:

Given,

an=n^2−1

2−1an+1=(n+1)^2−1

2−1=n^2+2n+1−1

2+2n+1−1=n^2+2n

Step-by-step explanation:

hope it helps you