The chapter “Complex Numbers and Quadratic Equations” in NCERT Class 11 Maths introduces students to an essential extension of the number system. It explains the concept of imaginary numbers, the imaginary unit (i), algebra of complex numbers, and their geometric representation on the Argand plane.
Key topics include addition, subtraction, multiplication, division of complex numbers, modulus, conjugate, and polar representation. The chapter also deals with solving quadratic equations with real and complex roots, conditions for discriminants, and methods of factorization.
Through solved examples and practice exercises, students learn systematic approaches to handle algebraic and graphical solutions.
This chapter is vital for strengthening the base of higher mathematics and is highly useful for Class 11 exams, JEE, and other competitive entrance tests where algebra and complex numbers frequently appear.
