linear equation of the second order
英
美
linear equation of the second order的用法和樣例:
例句
- Each kind of wave may use the trigonometric function equation to express.
各種波形曲線均可以用三角函數方程式來表示。
- The trigonometric terms should be changed by the substitution of the equations involving the double angles.
用倍角公式代換三角函數項。
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