Question

show that there are no positive n for which

$\sqrt{n - 1} + \sqrt{n + 1}$
is rational

be fast

Answer 1

$\huge{hey}$


$\huge{ \mathfrak{here \: is \: answer}}$


$\bf{see \: in \: pic}$


$\huge \boxed{ \ulcorner{hope \: it \: helps}}$

$\huge{ \mathfrak{THANKS}}$