August 2021 1 8 Report
Используя таблицу, найдите значения выражений:

а) tg 60 + 2cos 45 - ctg 45;

б) tg 30+ 4sin 30 + ctg 30;

в) 2cos 60 + 2sin 30 - 2sin 45;

г) cos 45 - 2 sin 60∙ ctg 60.
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