1 point Find the slope of the tangent line to the unit circle x = cost, y = sint, at the point where t = 3 CO OA OB V3 O c OD O E. None of the above2 points Find the tangent line(s) to the parametric curve given by = = t' - 9t' and y = t' at (0, 9). u= + 9 andy = - -2+9 9 1= - + 9 and y = +9 OA O B y = -2 +9 y = - +9 O c OD )E. None of the above\f2 points Determine the x - y coordinates of the points where the parametric equation = 3sint y = 3cost Ots 2x will have a vertical tangent. = 9, y = 0andr = -9, y = 0 c = 3, y = 0 and = = -3, y = 0 O O B * = 1, y = 0and = = -1, y = 0 + = 6, y = 0and x = -6, y = 0 O c OD ) E. None of the above2 points Determine the x - y coordinates of the points where the parametric equation x =3sint y = 3cost Osts 2x will have a horizontal tangent. * = 0, y = 9andr = 0, y= -9 c = 0, y = 3 and x = 0, y = -3 OA OB c = 0, y = land = = 0, y=-1