SOLUTION: Find the exact value of this. Show your work and explain the steps you take to find the value. tan 13pi/4

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Question 1029335: Find the exact value of this. Show your work and explain the steps you take to find the value.
tan 13pi/4
Answer by Edwin McCravy(20066)   (Show Source): You can put this solution on YOUR website!


Change  to degrees:



We subtract 360° enough times to get a
a positive coterminal angle less than 360°: 

585°-360° = 225° (it was only necessary to
subtract 360° one time.)



That is in QIII, So to get the reference
angle, we subtract 180° from 225° and get 
225°-180° = 45°.

The tangent is + in QIII, so 



Edwin
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