Rút gọn:

1/
A=\sqrt{\sqrt{5}-\sqrt{3-\sqrt{29-12\sqrt{5}}}}
2/ Rút gọn:
B=(\sqrt{6}+\sqrt{2})(\sqrt{3}-1)(2+\sqrt{3})

Và:
C=\sqrt{4+\sqrt{5\sqrt{3}+5\sqrt{48-10\sqrt{7+4\sqrt{3}}}}}

Viết lại cái đề đã:
1/
A=[You must be registered and logged in to see this image.]
2/
B=[You must be registered and logged in to see this link.]
3/
C=[You must be registered and logged in to see this image.]

Câu 1 nè:
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Ta có:
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Câu 2,
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Câu 3 (cuối):
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Thanks