Ответ:
Объяснение:
a) [tex]\sqrt{9+8-12\sqrt{2} } =\sqrt{9-12\sqrt{2} +8} =\sqrt{(3-2\sqrt{2}) ^{2} } =3-2\sqrt{2}[/tex]
б) [tex]\sqrt{9+12-12\sqrt{3} } =\sqrt{9-12\sqrt{3} +12} =\sqrt{(3-2\sqrt{3})^{2} } =2\sqrt{3} -3[/tex]
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Answers & Comments
Ответ:
Объяснение:
a) [tex]\sqrt{9+8-12\sqrt{2} } =\sqrt{9-12\sqrt{2} +8} =\sqrt{(3-2\sqrt{2}) ^{2} } =3-2\sqrt{2}[/tex]
б) [tex]\sqrt{9+12-12\sqrt{3} } =\sqrt{9-12\sqrt{3} +12} =\sqrt{(3-2\sqrt{3})^{2} } =2\sqrt{3} -3[/tex]