wyrażenie sin 30 stopni* tg 35 stopni * tg 55 stopni ma wartość?
sin30 * tg35 * ctg(90-55) = sin30 * tg35 * ctg 35 = sin30 *1 = 1/2
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sin30 * tg35 * ctg(90-55) = sin30 * tg35 * ctg 35 = sin30 *1 = 1/2