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January 25, 2015

January 25, 2015

Posted by **saki** on Monday, February 4, 2013 at 4:50pm.

- trig -
**Steve**, Monday, February 4, 2013 at 4:58pm1/tanβ + tanβ

(1+tan^2 β)/tanβ

sec^2 β/tan

since sec^2 β = 1+tan^2 β

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