Posted by **Anonymous** on Wednesday, November 12, 2008 at 7:58pm.

tan 15°

tan (45°-30°)

(tan 45° - tan 30°)/1+ tan 45°tan30°

(1-√3/3)/(1+1√3/3)

then i donnt what to do/ chancel out. Can someone finish it if i didn't get it wrong.

thanks in advance

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