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nevobint
@nevobint
July 2022
2
6
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Вычислите
9ctg(α+360°)
------------------
4tg(α-270°)
если α=-60°
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bolir1
70
будет 70 градусов да
0 votes
Thanks 0
lera99ru
1) 9ctg(-60+360)=9ctg(300)=9ctg(270+30)=9*√3+0=9
√3
2) 4tg(-60-270)=4tg(-330)=4tg(-60-270)=4*(-√3)=-4
√3
2 votes
Thanks 1
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Answers & Comments
будет 70 градусов да
2) 4tg(-60-270)=4tg(-330)=4tg(-60-270)=4*(-√3)=-4√3