Let z = cos + isin . Show that By considering (1 + z) n ,
Question:
Let z = cos θ + isin θ. Show that
By considering (1 + z)n, where n is a positive integer, deduce the sum of the series
Transcribed Image Text:
1+z = 2cos-0 cos -0 + isin-0
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There are i dentities cos12cos1212cos cos0 and cos12sin1212sinsin0 Hence 2cos12cos12cos1 and 2icos...View the full answer
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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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