Find an equation of the plane passing through the points P = (3, 7, 7), Q = (7, 7, 5), and R = (5, 7, 7). (Express numbers in exact form. Use symbolic notation and fractions where needed. Give the equation in scalar form in terms of x, y, and z.) equation: Convert from rectangular to polar coordinates. (Enter all angles in radians.) (a) (0, 1) (Give your answer in the form (*,*). Express numbers in exact form. Use symbolic notation and fractions where needed.) (m9) = \\ (b) (3%) (Give your answer in the form (*,*). Express numbers in exact form. Use symbolic notation and fractions where needed.) (r, 9) = F