Question 1) a)Sketch the curve in polar coordinates: r = (7-7sine) b) Find the arc length of the given curve between 0 = 0 and 0 = c) Find the area of the region enclosed by the given curve. Question 2) a) Identify the polar graph as a parabola, an ellipse or a hyperbola : r = b) Sketch its graph in polar coordinates. Question 3) a)Sketch the graph of the given function with two variables z = 2xy; 8 2-sine b) Sketch the contour plot for given function using the level curves k=-2,-2,0,1,2