The Cartesian coordinates of a point are given.

$($a$)$

$(6,6)$

$($i$)$

Find polar coordinates

$($r$,)$

of the point, where

r $>0$

and

$0<2.$

$($r$,)=$

$($ii$)$

Find polar coordinates

$($r$,)$

of the point, where

r $<0$

and

$0<2.$

$($r$,)=$

$($b$)$

$(2,2$

$3$

$)$

$($i$)$

Find polar coordinates

$($r$,)$

of the point, where

r $>0$

and

$0<2.$

$($r$,)=$

$($ii$)$

Find polar coordinates

$($r$,)$

of the point, where

r $<0$

and

$0<2.$

$($r$,)=$