



Mối liên hệ giữa các nghiệm của đa thức Chebyshev và các giá trị cosin của các góc đều nhau?
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cos15
- Tìm giá trị của x sao cho cos(x) = cos(15)?
- Tính sin(15) bằng số phức như thế nào?
- arccos(cos(x)) = ?
- sin(15) = sin(90 - 75) = ?
- tan(15) = sin(15) / cos(15) = ?
- Đổi 15 độ sang radian như thế nào?
- Các nguồn tài liệu trực tuyến miễn phí để học về lượng giác?
- Radioactivity and nuclear reactions?
- Tính giá trị gần đúng của sin15 bằng máy tính bỏ túi như thế nào?
- Biểu diễn sin(30) qua cos(15) như thế nào?
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