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In this video I work with the second de Moivre formula, which deals with the rooting of complex numbers. I also show the geometric interpretation of the cubic roots of -1. Watch also: COMPLEXES: INTRODUCTION, IMAGINARY UNIT AND 2ND DEGREE EQUATIONS • COMPLEXES: INTRODUCTION, IMAGINARY UNIT... COMPLEXES: POWERS OF i (imaginary unit) • COMPLEXES: POWERS OF i (unit i... COMPLEXES: ALGEBRAIC FORM, CLASSIFICATION AND EQUALITY • COMPLEXES: ALGEBRAIC FORM, CLASSIFICATION... COMPLEXES: OPERATIONS IN ALGEBRAIC FORM (+, -, X) • COMPLEXES: OPERATIONS IN ALGEBRAIC FORM... COMPLEXES: DIVISION IN ALGEBRAIC FORM • COMPLEXES: DIVISION IN ALGEBRAIC FORM... COMPLEXES: EXERCISES #1 • COMPLEXES: EXERCISES #1 (CLASS 6/14) COMPLEXES: EXERCISES #2 (DIVISION) • COMPLEXES: EXERCISES #2 (DIVISION) (A... COMPLEXES: GEOMETRIC INTERPRETATION AND MODULUS • COMPLEXES: GEOMETRIC INTERPRETATION AND... COMPLEXES: ARGUMENT • COMPLEXES: ARGUMENT (CLASS 9/14) COMPLEXES: TRIGONOMETRIC FORM (OR POLAR) • COMPLEXES: TRIGONOMETRIC FORM (OR P... COMPLEXES: EXERCISES #3 TRIGONOMETRIC FORM • COMPLEXES: EXERCISES #3 TRIGONOMETRIC FORM... COMPLEXES: POWER (1ST DE MOIVRE FORMULA) • COMPLEXES: POWER (1ST DE MOIVRE FORMULA) COMPLEXES: RADICAL ... MOIVRE) • COMPLEXES: RADICIATION (2ND FORMULA OF ...