[tex]\sqrt{\frac{33}{49} } = \frac{\sqrt{33} }{\sqrt{49} } = \frac{\sqrt{33} }{\sqrt{7^{2} } } = \frac{\sqrt{33} }{(7^{2} )^{\frac{1}{2} } } =\frac{\sqrt{33} }{7^{2\cdot \frac{1}{2} } } =\frac{\sqrt{33} }{7}[/tex]
Korzystam ze wzorów:
[tex]\sqrt[n]{x} = x^{\frac{1}{n} } \\\\(x^{n}) ^{m} =x^{n \cdot m}[/tex]
