Question

объясните пожалуйста! срочно!​

Answer 1

а) $\sqrt{7-\sqrt{24}} = \sqrt{7-2\sqrt{6}} = \sqrt{(1-\sqrt{6})^{2} }  = \sqrt{6}  - 1 = 1,4(49)$;

б) $\sqrt{17+6\sqrt{4-\sqrt{9 + 4\sqrt{2}}}} = \sqrt{17+6\sqrt{4-\sqrt{(1+2\sqrt{2})^{2} }}} = \sqrt{17+6\sqrt{4-1-2\sqrt{2}}} = \sqrt{17+6\sqrt{4-1-2\sqrt{2}}} = \sqrt{17+6\sqrt{(1-\sqrt{2})^{2}}}  = \sqrt{17+6\sqrt{2}-6} = \sqrt{(3+\sqrt{2})^{2}} = 3+\sqrt{2}$ = 4,(41421)