1st Year Math Chapter 1 Exercise 1.4 Notes: Cube and Fourth Roots of Unity (Punjab Board 2026-27)
Complete concept notes, formulas, and solved examples for ICS/FSc Part 1 Mathematics, Punjab Board (PECTAA), Single National Curriculum 2026-27 session. Exercise 1.4 looks at a special and frequently tested case of complex roots: the solutions to xⁿ = 1, focusing on the cube roots (n = 3) and fourth roots (n = 4) of unity….