Cho biểu thức:

B=\(\dfrac{28^{28}+28^{24}+28^{20}+...+28^4+1}{28^{30}+28^{28}+28^{26}+...+28^2+1}\)

Tính giá trị biểu thức B

Can you tell the difference between a sport and a game?

[ Phần Watch out! trong sách học sinh trang 17 ]

Japan is beautiful in April when all the trees are in blossoms.

Japan is beautiful in April when all the trees are in blossoms.

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