Chapter 5 - Section 5.4 - Half-Angle Formulas - 5.4 Problem Set - Page 304: 8

False

Testing the equation: $\tan{\dfrac{A}{2}} = \dfrac{\tan{A}}{2}$ for $A=60^\circ$ $LHS = \tan{30} =\dfrac{\sqrt{3}}{3}$ $RHS = \dfrac{\tan{60}}{2}= \dfrac{\sqrt{3}}{2}$ $LHS \neq RHS$ $\tan{\dfrac{A}{2}} \neq \dfrac{\tan{A}}{2}$