Odpowiedź:
[tex] \sqrt{ \frac{4}{49} \div \frac{256}{49} } + 3 \times 0.1 \times 80 - (2.4) ^{2} = \sqrt{ \frac{4}{49} \times \frac{49}{256} } + 0.3 \times 80 - 5.76 = \sqrt{ \frac{1}{64} } + 24 - 5.76 = \frac{1}{8} + 24 - 5.76 = 24.125 - 5.76 = 18.365[/tex]
b)
[tex] \sqrt{1600} \div \sqrt[3]{8} + \sqrt{49} = 40 \div 2 + 7 = 20 + 7 = 27[/tex]
c)
[tex] \sqrt{8 \sqrt{8 \sqrt{64} } } = \sqrt{8 \sqrt{8 \times 8 } } = \sqrt{8 \sqrt{64} } = \sqrt{8 \times 8} = \sqrt{64} = 8[/tex]
