trigonometric reduced formulas 三角降次公式
trigonometric power reduced formulas 三角降次公式
trigonometric power reduction formulas 三角降次公式
simplified formulas of trigonometric function 三角函数的简化公式
In this paper by using the symplectic transformation condition, some new formulas including Chebyshev Polynomial, trigonometric identity, hyperbolic identity were obtained.
利用辛变换条件得到了一些新的切比雪夫多项式公式、三角恒等式和双曲恒等式。
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