Complex Numbers and Quadratic Equations – NCERT Class 11 Mathematics Chapter 4 – Introduction, Algebra, and Geometric Representation

Explains the extension of real numbers to complex numbers, notation and algebra (addition, subtraction, multiplication, division), properties, powers of i, conjugate, modulus, Argand plane, square roots of negative numbers, quadratic equations with complex roots, and historical context, with worked examples and practice exercises.

Updated : 3 days ago