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September 19, 2014

September 19, 2014

Posted by **Alexander** on Sunday, November 20, 2011 at 3:40pm.

sin u = − 8/17 and cos v = − 3/5.

(Both u and v are in Quadrant III.)

cot(v − u)

- trig -
**Steve**, Sunday, November 20, 2011 at 4:32pmcot(v-u) = (cotv cotu + 1)/(cotu - cotv)

= [(3/4)(15/8) + 1] / [(15/8) - (3/4)]

= (77/32) / (3/8)

= 77/12

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