Ответ:
ctg (pix/18) = V3 pix/18 = pi/6 + pik x/18 = 1/6 + k
x = 3+18k
k = -1 = => x = 3 - 18 = - 15
ОТВЕТ: -15
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Ответ:
ctg (pix/18) = V3 pix/18 = pi/6 + pik x/18 = 1/6 + k
x = 3+18k
k = -1 = => x = 3 - 18 = - 15
ОТВЕТ: -15