PLEASE HELP!!!!

Part A: Given cosine of theta is equal to radical 2 over 2 comma determine three possible angles θ on the domain [0,∞). (5 points)

Part B: Given θ = 585°, convert the value of θ to radians and find sec θ. (5 points)

PLEASE HELP Part A Given cosine of theta is equal to radical 2 over 2 comma determine three possible angles θ on the domain 0 5 points Part B Given θ 585 conver class=