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sovtanmasha
@sovtanmasha
July 2022
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Найдите cos,tg,ctg, если:
sint= -35/37, t∈ (π; 3π/2)
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Miroslava227
Cos²t = 1 - Sin²t = 1 - 1225/1369 = 144/1369
Так как t - угол третьей четверти, то Cost = - 12/37
tgt = Sint/Cost = - 35/37 : ( - 12/37) = 35/12 = (2) 11/12
Ctgt = 1/tgt = 12/35
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Universalka
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Answers & Comments
Так как t - угол третьей четверти, то Cost = - 12/37
tgt = Sint/Cost = - 35/37 : ( - 12/37) = 35/12 = (2) 11/12
Ctgt = 1/tgt = 12/35
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Решение на фотографии