diketahui 2 pangkat x = 3 [tex] \frac{2 pangkat x + 2 pangkat min x}{2 pangkat 2 x - 2 pangkat min 2 x} = [/tex]

[tex]\frac{2^x + 2^{-x}}{2^{2x}-2^{-2x}}\\\\ =\frac{2^x + \frac{1}{2^x}}{2^x . 2^x - \frac{1}{2^x} . \frac{1}{2^x}}}\\\\ = \frac{3 + \frac{1}{3}}{3 . 3 - \frac{1}{3} \frac{1}{3} }\\\\ = \frac{ \frac{10}{3} }{ \frac{80}{9}}\\\\ = \frac{90}{240}\\\\ = \frac{3}{8}[/tex]