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July 25, 2014

Homework Help: pre-cal

Posted by ethan on Wednesday, May 16, 2007 at 7:33pm.

Find the EXACT VALUE of csc(-11pi/12)

If that angle is in radians, it is easy.

A full circle has 2PI radians...or 360 deg

so 22PI/24 is the same as 22*15 deg, or -30 deg. The 30 deg triangle is well known. The sin is 1/2, so the csc is 2

Figure out the sign of the csc from what quadrant it is in.

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