Odpowiedź:
a ) [tex]\frac{3}{\sqrt{7} } *\frac{\sqrt{7} }{\sqrt{7} } = \frac{3\sqrt{7} }{7}[/tex] b ) [tex]\frac{4}{\sqrt{8} } *\frac{\sqrt{8} }{\sqrt{8} } = \frac{4*\sqrt{4*2} }{8} = \frac{8\sqrt{2} }{8} =\sqrt{2}[/tex]
c ) [tex]\frac{36}{\sqrt{3} } *\frac{\sqrt{3} }{\sqrt{3} } = \frac{36 \sqrt{3} }{3} = 12\sqrt{3}[/tex] d ) [tex]\frac{5}{2\sqrt{5} } *\frac{\sqrt{5} }{\sqrt{5} }[/tex] [tex]= \frac{5\sqrt{5} }{2*5} = \frac{\sqrt{5} }{2}[/tex]
Szczegółowe wyjaśnienie:
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Odpowiedź:
a ) [tex]\frac{3}{\sqrt{7} } *\frac{\sqrt{7} }{\sqrt{7} } = \frac{3\sqrt{7} }{7}[/tex] b ) [tex]\frac{4}{\sqrt{8} } *\frac{\sqrt{8} }{\sqrt{8} } = \frac{4*\sqrt{4*2} }{8} = \frac{8\sqrt{2} }{8} =\sqrt{2}[/tex]
c ) [tex]\frac{36}{\sqrt{3} } *\frac{\sqrt{3} }{\sqrt{3} } = \frac{36 \sqrt{3} }{3} = 12\sqrt{3}[/tex] d ) [tex]\frac{5}{2\sqrt{5} } *\frac{\sqrt{5} }{\sqrt{5} }[/tex] [tex]= \frac{5\sqrt{5} }{2*5} = \frac{\sqrt{5} }{2}[/tex]
Szczegółowe wyjaśnienie: