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OpenStudy (anonymous):
use the sum and difference identities to find exact values for each of the following tan 75° and cos (π/12) WHAT THE HECK?? HELP PLEASE!
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OpenStudy (anonymous):
75=45+30
OpenStudy (anonymous):
http://www.cliffsnotes.com/study_guide/Tangent-Identities.topicArticleId-11658,articleId-11614.html
OpenStudy (anonymous):
whoa exact question o.o and thank you so much!
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