Ответ:
-6
Пошаговое объяснение:
28sin105°cos105° - tg225°ctg330°ctg240° = 14sin210° + tg45°ctg30°ctg60° =
= 14*(-0,5) + 1*√3*√3/3 = -7 + 1 = -6
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Ответ:
-6
Пошаговое объяснение:
28sin105°cos105° - tg225°ctg330°ctg240° = 14sin210° + tg45°ctg30°ctg60° =
= 14*(-0,5) + 1*√3*√3/3 = -7 + 1 = -6