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Solution 4.2:1b

From Förberedande kurs i matematik 1

Revision as of 10:56, 28 September 2008 by Ian (Talk | contribs)
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If we reflect the triangle, it can be easier to identify the different sides in the triangle.


Because we know the hypotenuse and want to find the adjacent, it is appropriate to consider to the quotient for the cosine of an angle:


cos32=x25=adjacenthypotenuse  


From this equation, we can solve for x:


x=25cos32212 

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