Show that (z - e i )(z e -i ) = z 2 - 2zcos
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Show that (z - eiθ)(z – e-iθ) = z2 - 2zcos θ + 1.
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Related Book For
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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