1)(√x)-2≠0,√x≠2, x≠4, x∈(-∞,4)∪(4,∞)
ecli 2)√(x-2), to 0 ∠√(x-2), 0∠x-2, 2∠x, x∈(2,∞)
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1)(√x)-2≠0,√x≠2, x≠4, x∈(-∞,4)∪(4,∞)
ecli 2)√(x-2), to 0 ∠√(x-2), 0∠x-2, 2∠x, x∈(2,∞)