0 0 votes The number of real cubic polynomials of the form $x^{3}+a x+b$, each of whose complex roots lies on the unit circle $S^{1}=\{z \in \mathbb{C} \mid z \bar{z}=1\}$, equals$0$$2$$\infty$None of the remaining three options Elementary Algebra tifrmaths2025 algebra polynomials complex-number + – Shubham Sharma 2 121 views answer comment Share Follow Print 0 reply Please log in or register to add a comment.