Tan(45/4)+2tan(45/2)+4=? , Mathematics


Posted Date: 3/8/2013 7:25:39 AM | Location : United States

Ans) 4.61

By solving tan(45/2) using formula tan(A/2)=under root 1-cosA/1+cos A.

take tan(45/4) as tan((45/2)/2)

Posted by | Posted Date: 3/8/2013 7:26:22 AM

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