[tex]Zadania:~~d,~~e,~~oraz f ~~w~~zalaczniku.\\\\c)\\\\\dfrac{tg150^{0} -tg120^{o} }{cos120^{o} } =\dfrac{-\frac{\sqrt{3} }{3} -(-\sqrt{3} )}{-\frac{1}{2} } =\dfrac{-\frac{\sqrt{3} }{3} +\sqrt{3} }{-\frac{1}{2} } =\frac{\dfrac{2\sqrt{3} }{3} }{-\dfrac{1}{2} } = \dfrac{2\sqrt{3} }{3} \cdot (-\dfrac{2}{1}) =- \dfrac{4\sqrt{3} }{3}\\\\f)\\\\wynik :~~\frac{3}{2} \sqrt{3} +4\frac{1}{2} =\frac{3}{2} \sqrt{3} +\frac{9}{2}=\frac{3}{2} \cdot (\sqrt{3} +3)[/tex]
