Toán Violympic!

D

ducpro98

$\sqrt{55 - 6\sqrt{6}} = \sqrt{(3\sqrt{6} - 1)^2} = -1 + 3\sqrt{6} $
=> $a = -1; b = 3 $
=> $a-b = -4$
Vậy$ a - b = 4$
 
Last edited by a moderator:
Top Bottom