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Solution 4.2:1f

From Förberedande kurs i matematik 1

Revision as of 11:17, 28 September 2008 by Ian (Talk | contribs)
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The side adjacent to the angle of 50 is marked x and the opposite is the side of length 19.


If we write the tangent for the angle, this gives a relation which contains x as the only unknown,


tan50=x19


This gives


x=19tan50159