Предмет: Алгебра, автор: bonniecasper99

упростить выражение: tg(п/4+а)

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Автор ответа: Аноним

0

tg(π/4+a)=(tgπ/4+tga)/(1-tgπ/4*tga)=(1+tga)/(1-tga)=(sina+cosa)/(cosa-sina)

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