is 
is not an angle where the values of the six trigonometric functions are known, try using half-angle identities.
and an angle where the values of the six trigonometric functions are known. In this case, 
Find the exact value by using a half-angle identity.
tangent of seven pi divided by eigh...
Mathematics, 17.10.2019 06:30 atifgujar
Find the exact value by using a half-angle identity.
tangent of seven pi divided by eight
tan (7pi/8)
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Answers: 3
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