Question

Как посчитать?
$frac{9}{8}- frac{ sqrt{48} }{8}$

Answer 1

$frac{9}{8} - frac{sqrt{48}}{8} = frac{9-sqrt{16cdot 3}}{8} = frac{9-4sqrt3}{8} = frac{sqrt3(3sqrt3-4)}{8}$