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Solution 4.3:4c

From Förberedande kurs i matematik 1

Revision as of 11:44, 29 September 2008 by Ian (Talk | contribs)
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The formula for double angles gives


sin2v=2sinvcosv


and from exercise b, we have sinv=1−b2 


Thus,


sin2v=2b1−b2 

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