Если не ошибаюсь: БУХГАЛТЕР,СМЕТЧИК,МЕНЕДЖЕР ПО КРЕДИТАМ,СТАТИСТИК,КОРРЕКТОР,КОПИРАЙТЕР,<span>ЛЕКТОР и многие другие...
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<span>Tg ( B + пи/3 ) = (tg β + tg π/3)/1 - tg β*tg π/3=(tg β + √3)/1 - tg β*√3=2√3</span>
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