In this chapter, students will learn about complex numbers and understand their standard form $a+bi$. They will study the algebra of complex numbers, powers of the imaginary unit i, and the square roots of negative real numbers, which extend the real number system.

Students will also learn important identities of complex numbers, find the conjugate and modulus, and understand the polar representation of complex numbers. This chapter lays a strong foundation for advanced mathematics, physics, and engineering applications.