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2025-07-24 15:43:27
2025-06-09 23:06:46
tìm điểm khác biệt(chữ thứ mấy) vvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvwvvvvvvvvvvvvvvvvvvvvvvvvvvvv
2025-06-09 23:06:45
tìm điểm khác biệt(chữ thứ mấy) vvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvwvvvvvvvvvvvvvvvvvvvvvvvvvvvv
2025-06-07 21:24:33
\(x=8\times\cos(\left(\frac{\pi}{2}t+\frac{\pi}{2}\right)\)