Question

$\sqrt{3 - \times }$
$\sqrt{3 - 3 \times }$
$\sqrt{ - 4 \times }$
$\sqrt{ \times - 3.5}$
$\sqrt{3 \times + 12}$
$\sqrt{7 - 0.2 \times ?}$
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Answer 1

Ответ:

Область допустимых значений.

$\sqrt{3-x}\ \ ,\ \ \ ODZ:\ 3-x\geq 0\ \ ,\ \ x\leq 3\\\\\\\sqrt{3-3x}\ \ ,\ \ \ ODZ:\ 3-3x\geq 0\ \ ,\ \ x\leq 1\\\\\\\sqrt{-4x}\ \ ,\ \ \ ODZ:\ -4x\geq 0\ \ ,\ \ \ x\leq 0\\\\\\ \sqrt{3x+12}\ \ ,\ \ \ ODZ:\ 3x+12\geq 0\ \ ,\ \ x\geq -4\\\\\\\sqrt{7-0,2x}\ \ ,\ \ \ ODZ:\ 7-0,2x\geq 0\ \ ,\ \ 7\geq 0,2x\ \ ,\ \ x\leq 35$