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cu3tie
@cu3tie
July 2022
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13sinα+14cosα деленная на 15sinα-16cosα,
если ctg= семь восьмых
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Answers & Comments
Armagedon96
Tgα = 1 / ctgα
ctgα=7/8 tgα= 8/7
13sinα+14cosα 13 13tgα 14ctgα 14 13+14ctgα 13tgα+14
____________ = __ - _____ + ____ - ____ = _________ - ________ =
15sinα-16cosα 15 16 15 16 15 16
13+14*7/8 13*8/7+14
=_________ - ________ =
15 16
25,25 13*8/7+14
=_________ - ________ = 1,8+1,683 = 3.483
15 16
Уж извини, но по-другому не знаю как.
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Thanks 1
cu3tie
ответ 25,25
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Answers & Comments
ctgα=7/8 tgα= 8/7
13sinα+14cosα 13 13tgα 14ctgα 14 13+14ctgα 13tgα+14
____________ = __ - _____ + ____ - ____ = _________ - ________ =
15sinα-16cosα 15 16 15 16 15 16
13+14*7/8 13*8/7+14
=_________ - ________ =
15 16
25,25 13*8/7+14
=_________ - ________ = 1,8+1,683 = 3.483
15 16
Уж извини, но по-другому не знаю как.