Question

Ex 18!!!Va rog repede!!!! URGENT 20 PUNCTE!!!!!

Answer 1

$\sqrt{a \times b} = \sqrt{( \sqrt{2} + 1)( \sqrt{2} - 1)...( \sqrt{6} + \sqrt{5} )( \sqrt{6} - \sqrt{5} ) } = \sqrt{(2 - 1)(3 - 2)...(6 - 5)} = \sqrt{1} = 1$