Question

1. if n is an odd integer, then n2 - 1 is divisible by
which number?
(1)​

Answer 1

Answer:

answered will be

2

Step-by-step explanation:

1. we know that square of odd no. is always odd
2. if we substract 1 from odd no. then the new no. will become even no.
3. we know that even no. is divisible by 2