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In triangle XYZ, we have angle X = 120, tan Z = 3.  What is cos Z?  Answer with an exact number.

 Feb 6, 2021
 #1
avatar+31701 
+1

Like so:

 Feb 6, 2021
 #2
avatar+1026 
+2

That doesn't make sense to me whatsoever. The sum of angles X and Z is over 180 surprise

 

That looks more like this:

 

 Feb 6, 2021
edited by jugoslav  Feb 6, 2021

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