You will learn how to:
- prove, understand and use de Moivre’s theorem for positive exponents, and also work with negative and rational exponents
- express trigonometric ratios of multiple angles in terms of powers, and express powers of cosine and sine in terms of multiple angles
- use summation notation in conjunction with de Moivre’s theorem to simplify and manipulate series of trigonometric terms
- interpret the multiplication and division of complex numbers geometrically
- determine the nth roots of unity and of complex expressions.
Cambridge International AS and A-Level Further Mathematics by McKelvey L., & Crozier M. (Download eBook)
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