July 2022 1 15 Report
Помогите! 50 баллов!

1.Вычислить sinα tgα ctgα

если cosα=[tex]-\frac{4}{5}[/tex] α∈{π\α;π}

2.sin(α+β)

если sinα= [tex]-\frac{1}{3}[/tex] cosβ=[tex]-\frac{2}{5}[/tex]

π<2β<3π\2
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