Question

3. Which of the following is a Pythagorean-triplet?
(1) n, la - 1) and (n? + 1) (ii) (n-1), (n) and (n+1)
Vili) in 1), (n-1) and (n+ 1) (iv) 2n, (n-1) and (n+ 1L​

Answer 1

Answer:

$n^{2} -1\\n^{2} +1\\2n$