номер 1: вычислете
4tg60градусов-2cos30градусов=
4tg60градусов-2cos30градусов=4∙√3- 2∙ ( √3/2)=3∙√3
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4tg60градусов-2cos30градусов=4∙√3- 2∙ ( √3/2)=3∙√3