Răspuns: [tex]\Large\boxed{\bf 1 }[/tex]
[tex]\bf~~~[/tex]
[tex]\large \bf a) ~\bigg[\bigg(\dfrac{1}{2}\bigg)^{3} -\bigg(\dfrac{1}{6}\bigg)^{3}\bigg] \cdot \dfrac{128-20^{1}}{65:5} =[/tex]
[tex]\large \bf \bigg(\dfrac{1^{3}}{2^{3}} -\dfrac{1^{3}}{6^{3}}\bigg) \cdot \dfrac{108}{13} =[/tex]
[tex]\large \bf \bigg(\dfrac{1}{8} -\dfrac{1}{216}\bigg) \cdot \dfrac{108}{13} =[/tex]
[tex]\large \bf \bigg(\dfrac{27\cdot 1}{216} -\dfrac{1}{216}\bigg) \cdot \dfrac{108}{13} =[/tex]
[tex]\large \bf \dfrac{27-1}{216} \cdot \dfrac{108}{13} =[/tex]
[tex]\large \bf \dfrac{26}{216} \cdot \dfrac{108}{13} =[/tex]
[tex]\large \bf \dfrac{\not26}{\not216} \cdot \dfrac{\not108}{\not13} =[/tex]
[tex]\large \bf \dfrac{2}{2} \cdot \dfrac{1}{1} =[/tex]
[tex]\large\boxed{\boxed{\bf 1 }}[/tex]
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