Find the polar$$ coordinates,

$0$less than or equalsthetaless than$2$pi

and

rgreater than or equals$0,$

of the following points given in Cartesian coordinates.

$($a$)$ left parenthesis $1,$ StartRoot $3$ EndRoot right parenthesis

$($b$)$ left parenthesis negative $4,4$ StartRoot $3$ EndRoot right parenthesis

$($c$)$ left parenthesis negative $3$ StartRoot $3$ EndRoot, negative $3$ right parenthesis