Q45·Section II (Mathematics)·45 of 84The discriminant B2−ACB^2-ACB2−AC vanishes identically: parabolicThe partial differential equation x2uxx−2xyuxy+y2uyy+xux+yuy=0x^2u_{xx}-2xyu_{xy}+y^2u_{yy}+xu_x+yu_y=0x2uxx−2xyuxy+y2uyy+xux+yuy=0: OptionsAis hyperbolic if x>0x>0x>0, y>0y>0y>0Bis hyperbolic on R2\mathbb{R}^2R2Cis elliptic on R2\mathbb{R}^2R2Dis parabolic on R2\mathbb{R}^2R2Pick an option to check your answer.Show answerShow solution Report a problem with this question← Q44All questionsQ46 →Keyboard: A–D answer · S solution · ←/→ previous/next