Hello, I am stuck on these three questions. Please show work so that I may understand. Simplify answers where appropriate and Domains should be written in interval notation.

Question 4 Convert the following to either rectangular or polar equations: a) r = -3sin 0 (2 -4y =4 Question 3 Prove the following identities: a) b) 1 + tan 0 sec 0 2 tan x - = sin 2x 1 + cot 0 csco 1 + tan x Question 6 Convert the following to polar coordinates using radians: a) b) (-3, 3V/3) (-4, 4) Convert the following to rectangular coordinates: a) b ) 7 , 6