Posted by **Austin** on Thursday, April 2, 2009 at 11:50am.

Evaluate tan(cos^(-1)(3/2 )+tan^(-1)(3/3))?

arccos(sqrt(3) / 2) = pi / 6

arctan(sqrt(3) / 3) = pi / 6

tan(pi / 6 + pi / 6)

= tan(pi / 3)

= sqrt(3).

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