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the answer to tan(-3pi/5) with the answers narrowed to sqrt2/2,sqrt-2/2,1 and -1

 Feb 26, 2015

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 #1
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tan (-3pi/5) =tan(-108°) = tan(252°) =  about 3.77

 

 Feb 27, 2015
 #1
avatar+130516 
+5
Best Answer

tan (-3pi/5) =tan(-108°) = tan(252°) =  about 3.77

 

CPhill Feb 27, 2015

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