Define a relation R on $$ as follows: For all integers m and n$,$

m R n $5|($m$2$ n$2).$

$($a$)$ Is $1$ R $(6)?$

$($b$)$ Is $2$ R $17?$

$($c $)$ Is $3$ R $(7)?$

$($d$)$ Is $(7)$ R $3?$