Объяснение:
6ctg x = -3 | : 6
ctg x = -1/2
x = arcctg (-1/2) + πk, k ∈ Z.
x = п - arcctg(1/2) + πk, k ∈ Z.
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Объяснение:
6ctg x = -3 | : 6
ctg x = -1/2
x = arcctg (-1/2) + πk, k ∈ Z.
x = п - arcctg(1/2) + πk, k ∈ Z.