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OpenStudy (anonymous):
I don't see how any of these are true, so I picked just one statement. Is it true? They're statements about Half-Identities.
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OpenStudy (anonymous):
OpenStudy (shane_b):
That's correct
OpenStudy (shane_b):
All of the 3 identities are in terms of cosine.
OpenStudy (anonymous):
Alrighty (: Thank you. And yeah, that's what I saw so I was like....?
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