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Topic: Beginner Trigonometry
Replies: 1   Last Post: Mar 24, 2004 9:16 PM

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Posts: 4
Registered: 12/6/04
RE: Beginner Trigonometry
Posted: Mar 24, 2004 9:16 PM
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Cosine is an abbreviation for the complement's sine.


-----Original Message-----
From: Gianna [mailto://angelfishs625@yahoo.com]
Sent: Wednesday, March 24, 2004 2:35 PM
To: geometry-pre-college@mathforum.org
Subject: Beginner Trigonometry

Why does cosA=sinB and sinA=cosB?

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