# Posts by READ

Total # Posts: 2

**READ**

Why did you take the negative sign out? sin(-PI/12)=-sin(PI/12) I understand this why are we adding pi to the denomenator I udner stand that sin (theta) = sin (theta + 2pi) = + sin(PI/12+PI) I don't understand that = sin(13PI/12) how did we get thirteen ontop? =sin(13PI/12...

*November 15, 2009*

**READ**

but I can evalute using limits...

*October 31, 2009*

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