C/m A, B ∈ Z, với:

A= \(\sqrt{6-2\sqrt{5}}-\sqrt{6+2\sqrt{5}}\)

B= \(\dfrac{\sqrt{3-2\sqrt{2}}}{\sqrt{17-12\sqrt{2}}}-\dfrac{\sqrt{3+2\sqrt{2}}}{\sqrt{17+12\sqrt{2}}}\)

Help me

Rút gọn:

\(\sqrt{\dfrac{\sqrt{9}-4\sqrt{5}-\sqrt{5}}{2}+5}\)

Điền dấu >; <; = vào chỗ chấm:

0....1     0....5     7.....0     8....8

2....0     8....0     0.....3     4....4

0....4     9....0     0.....2     0....0