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May 24, 2015

Homework Help: Math

Posted by Crystal on Saturday, November 24, 2012 at 8:07pm.

How does the related acute angle help to determine the trigonometric ratios of angles greater than 90 degrees? (in terms of the Cartesian plane)

And why is the sin, cos, and tan of the principal angle equal to the sin, cos, and tan of the related acute angle??

These aren't homework questions, I actually just don't understand these concepts. Please help me and explain it to me

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