Question

rationalizati numitorul raportului 15 supra 4 radical din 5​

Answer 1

${}^{ \sqrt{5} )} \frac{15}{4 \sqrt{5} } = \frac{15 \sqrt{5} }{4 \sqrt{5} \times \sqrt{5} } = \frac{15 \sqrt{5} }{4 \sqrt{5 {}^{2} } } = \\ \\ = \frac{15 \sqrt{5} }{4 \times 5} {}^{(5} = \frac{3 \sqrt{5} }{4}$