Question

Root10-root5/2root2 solve the sum

Answer 1

$\sqrt{10} - \frac{ \sqrt{5} }{2 \sqrt{2} } \\ by \: rationalizing \\ \sqrt{10} - \frac{ \sqrt{10} }{2 \times 2} \\ \sqrt{10} (1 - \frac{1}{4}) \\ \frac{3 \sqrt{10} }{4}$