@Leon2014

Leon2014

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13)где β = 2 четверти, вычислить cos2β, sin2β...
Answer
(sin(90°+a)ctg(90°+a)tg(90°+a))...
Answer
√5) a=1 четверти...
Answer
(sin(90°+a)ctg(90°+a)tg(90°+a))...
Answer

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