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tan(45/4)+2tan(45/2)+4=?
answers is 4.61 and solving solve tan(45/2) using formula tan(A/2)=under root 1-cosA/1+cos A. take tan(45/4) as tan((45/2)/2).
answers is 4.61 and
solving solve tan(45/2) using formula tan(A/2)=under root 1-cosA/1+cos A.
take tan(45/4) as tan((45/2)/2).
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