Упрости выражение

\(\sqrt{3\sqrt{5}} = \sqrt{\sqrt{3^2}\sqrt{5}} = \sqrt{\sqrt{3^2\cdot 5}} = \sqrt{\sqrt{45}} = \sqrt[4]{45}\)

а) \(\sqrt{5\sqrt{3}} = \) [ ];

б) \(\sqrt{2\sqrt[3]{4}} = \) [ ].