Please help me solve this question in detail; I really do not understand it. Thank you so much, and have a great day!

3) Consider the circle (x + 3)2 + y2 = 9. Find the polar equation, r =6'), for this circle. Then, usingr the formula for the arc length in polar form obtained in question 2, determine the circumference of the circle. 4) For the circle with polar equation obtained in question 3, determine the values of 6 for which i > 0. d9 Then discuss what it means for i > 0 for the curve. d9