Помогите 4 и 6!!!!!!

Question

Помогите 4 и 6!!!!!!

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Answer 1

4.

6.
0 \\ \sqrt{x} = 2 \\ x = 4" alt=" \sqrt{x} > 0 \\ \sqrt{x} = 2 \\ x = 4" align="absmiddle" class="latex-formula">
[0;4) и (4;. + бесконечность)