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OpenStudy (anonymous):
Find the exact value by using a half-angle identity. cos of pi/ 12 answers: one half times the square root of quantity one plus square root of three one half times the square root of quantity one minus square root of three one half times the square root of quantity two plus square root of three one half times the square root of quantity two minus square root of three
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OpenStudy (anonymous):
someone help please!
OpenStudy (anonymous):
magic
OpenStudy (anonymous):
lol do you know the answer?
OpenStudy (anonymous):
I do but i have helped you twice already
OpenStudy (anonymous):
well you cant just taunt me like that by commenting and not do anything! :)
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