SOLUTION: use the reference angles to find the exact value of the expression: tan -7pi/4

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Question 60842: use the reference angles to find the exact value of the expression:
tan -7pi/4
Answer by venugopalramana(3286) About Me  (Show Source):
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use the reference angles to find the exact value of the expression:
tan -7pi/4 = -TAN [7PI/4]= - TAN [2PI-PI/4]= -TAN(-PI/4)=TAN(PI/4)=1