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OpenStudy (anonymous):
Without a calculator determine the exact value of tan 7pi/4
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OpenStudy (anonymous):
do you have a unit circle?
OpenStudy (anonymous):
No
OpenStudy (anonymous):
\[\tan \frac{ 7\pi }{4 }=\tan \left( 2\pi-\frac{ \pi }{4 } \right)=-\tan \frac{ \pi }{4 }= -1\]
OpenStudy (anonymous):
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