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Mathematics 8 Online
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.

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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