Plot the point
(−5,−π4​)
given in polar​ coordinates, and find other polar coordinates (r,θ) of the point for which the following are true. give answers in an ordered pair with exact answers using π as needed (simplify your answers)
​(a)
r>0, −2π≤θ<0 ​(b)
r<0, 0≤θ<2π ​(c)
r>0,2π ≤θ<4pi