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January 28, 2015

January 28, 2015

Posted by **Delia** on Thursday, December 10, 2009 at 9:47pm.

- Trigonometry -
**Reiny**, Thursday, December 10, 2009 at 10:33pm11pi/6 is just pi/6 short of 2pi

so csc 11pi/6

= csc (-pi/6)

= -csc pi/6

= -1/sin pi/6

= -1/(1/2), [sin 30º = sin pi/6 = 1/2]

= -2

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