ДАЮ 30 БАЛЛОВ!
Решите уравнения c объяснением:
1) [tex]tg(x-\frac{Pi}{4} )=-1[/tex] для x∈[tex](-\frac{Pi}{4};\frac{Pi}{4})[/tex]
2) 1+sin2x=2sinx+cosx
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