L
love_superjunior


Tính giá trị biểu thức:
a) [tex] \sqrt{57-40\sqrt{2}} [/tex]
b) [tex] \sqrt{52-30\sqrt{3}} + \sqrt{52+30\sqrt{3}} [/tex]
c) [tex] \sqrt{32-16\sqrt{5}} [/tex]
a) [tex] \sqrt{57-40\sqrt{2}} [/tex]
b) [tex] \sqrt{52-30\sqrt{3}} + \sqrt{52+30\sqrt{3}} [/tex]
c) [tex] \sqrt{32-16\sqrt{5}} [/tex]
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