УМОЛЯЮ 1) 5 arcsin 1/2 + 3 arc cos ( - 1/√2) + arc sin 1 =
2) 2 arc tg ( - √3) + 2 arccos ( - √3/2) + arc sin 1/2 =
3) 1/2 arcsin ( -1) - 5/2 arccos √3/2 + 3 arc tg (- 1/√3) =
244
435
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