Răspuns:
[tex] \frac{x}{ \sqrt{0.25} } = \frac{1000}{0.5 {}^{ - 2} } [/tex]
[tex]x = \frac{1000 \times \sqrt{0.25} }{0.5 {}^{ - 2} } [/tex]
[tex]x = 1000 \times \sqrt{0.25} \times 0.5 {}^{2} = 1000 \times 0.5 \times 0.5 {}^{2} = 1000 \times {0.5}^{3} = 1000 \times 0.125 = 125[/tex]
