?
If n is a whole number greater than 1, then n2 (n2 - 1) is always divisible by :
Answer & Solution
Correct Answer:
Option
C
Let N = n2 (n2 - 1) = n2 (n - 1) (n + 1)
Then, n = 2
⇒ N = 22 × (2 - 1) (2 + 1)
= (4 × 1 × 3) = 12
Hence, the required number is 12
Then, n = 2
⇒ N = 22 × (2 - 1) (2 + 1)
= (4 × 1 × 3) = 12
Hence, the required number is 12
Join the Discussion
Login to post a comment or share your explanation.
Login