вычислите1) 6 sin 30 градусов -2 ctg 45 градусов-cos 0 градусов...

2)2 sin П/4-3/4 tg п-2 cos(-п/6)

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Смысл заглавия произведения "Отцы и дети"

Докажите,что значение выражения 3,6 + 5/12t - 1/6t - 0,25t не зависит от значения t.

5/12 ; 1/6 - это дроби.

Спасибо!!!

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