linear equation of the second order

 
  • 三角函數

linear equation of the second order的用法和樣例:

例句

  1. Each kind of wave may use the trigonometric function equation to express.
    各種波形曲線(xiàn)均可以用三角函數方程式來(lái)表示。
  2. 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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