Автор - diana6516

Допоможіть. срочно
Алгебра К.р​

Ответ

Автор - svetazuna

(tg 110° + tg 25°) / (1 - tg 110° * tg 25°) =

= tg (110° + 25°) = tg 135° = -ctg45 = -1,

               АБО: = tg 135° = tg (180° - 45°) = -tg 45° = -1

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