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OpenStudy (anonymous):
Find an exact value. tan 75°
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OpenStudy (anonymous):
also, \[\cos 19\pi /12\]
OpenStudy (anonymous):
tan 75° = tan (30 + 45) = (tan 30 + tan 45) / (1 − tan 30 tan 45) = 2 + sqrt(3)
OpenStudy (anonymous):
thanks
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