September 2018 2 17 Report
1.zapisz w prostszej postaci:
sinα * cos²α + sin³α =
cosα + cosα * tg²α =
sinα + cosα * ctgα =
(cosα + tgα * sinα) * ctgα =
sinα * √(1+ ctg²α) = α∈(π, 3/2π)

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