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September 21, 2014

September 21, 2014

Posted by **Ryan** on Tuesday, October 11, 2011 at 8:06pm.

- trig -
**Reiny**, Tuesday, October 11, 2011 at 8:14pmmake a triangle and you should reconize the 3-4-5 right-angled triangle.

but we know tan(π/2 - Ø) = cotØ , coterminal ratios

since Ø is in II , tan Ø = -3/4

cotØ = 1/tanØ = -4/3

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