Ответ:
3
Объяснение:
[tex]\frac{\sqrt{54} }{\sqrt{\sqrt{15}+3 }*\sqrt{\sqrt{15}-3 } } =\frac{\sqrt{54} }{\sqrt{(\sqrt{15}+3 )*(\sqrt{15}-3) } }=\frac{\sqrt{54} }{\sqrt{(\sqrt{15})^{2} -3^{2} } }=\frac{\sqrt{54} }{\sqrt{15-9} }=\frac{\sqrt{9*6} }{\sqrt{6} } =\frac{3\sqrt{6} }{\sqrt{6} } =\\\\=3[/tex]
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Ответ:
3
Объяснение:
[tex]\frac{\sqrt{54} }{\sqrt{\sqrt{15}+3 }*\sqrt{\sqrt{15}-3 } } =\frac{\sqrt{54} }{\sqrt{(\sqrt{15}+3 )*(\sqrt{15}-3) } }=\frac{\sqrt{54} }{\sqrt{(\sqrt{15})^{2} -3^{2} } }=\frac{\sqrt{54} }{\sqrt{15-9} }=\frac{\sqrt{9*6} }{\sqrt{6} } =\frac{3\sqrt{6} }{\sqrt{6} } =\\\\=3[/tex]