const data = {
  name: "三角",
  code: "trigonometry",
  source: "trigonometry",
  children: [
    {
      output: "e^{i \\theta} ",
      source: "trigonometry_1",
    },
    {
      output: "\\left(\\frac{\\pi}{2}-\\theta \\right )    ",
      source: "trigonometry_2",
    },
    {
      output:
        "\\text{sin}^{2}\\frac{\\alpha}{2}=\\frac{1- \\text{cos}\\alpha}{2} ",
      source: "trigonometry_3",
    },
    {
      output:
        "\\text{cos}^{2}\\frac{\\alpha}{2}=\\frac{1+ \\text{cos}\\alpha}{2} ",
      source: "trigonometry_4",
    },
    {
      output:
        "\\text{tan}\\frac{\\alpha}{2}=\\frac{\\text{sin}\\alpha}{1+ \\text{cos}\\alpha} ",
      source: "trigonometry_5",
    },
    {
      output:
        "\\sin \\alpha + \\sin \\beta =2 \\sin \\frac{\\alpha + \\beta}{2}\\cos \\frac{\\alpha - \\beta}{2} ",
      source: "trigonometry_6",
    },
    {
      output:
        "\\sin \\alpha - \\sin \\beta =2 \\cos \\frac{\\alpha + \\beta}{2}\\sin \\frac{\\alpha - \\beta}{2} ",
      source: "trigonometry_7",
    },
    {
      output:
        "\\cos \\alpha + \\cos \\beta =2 \\cos \\frac{\\alpha + \\beta}{2}\\cos \\frac{\\alpha - \\beta}{2} ",
      source: "trigonometry_8",
    },
    {
      output:
        "\\cos \\alpha - \\cos \\beta =-2\\sin \\frac{\\alpha + \\beta}{2}\\sin \\frac{\\alpha - \\beta}{2} ",
      source: "trigonometry_9",
    },
    {
      output: "a^{2}=b^{2}+c^{2}-2bc\\cos A ",
      source: "trigonometry_10",
    },
    {
      output:
        "\\frac{\\sin A}{a}=\\frac{\\sin B}{b}=\\frac{\\sin C}{c}=\\frac{1}{2R} ",
      source: "trigonometry_11",
    },
    {
      output:
        "\\sin \\left ( \\frac{\\pi}{2}-\\alpha \\right ) = \\cos \\alpha",
      source: "trigonometry_12",
    },
    {
      output:
        "\\sin \\left ( \\frac{\\pi}{2}+\\alpha \\right ) = \\cos \\alpha ",
      source: "trigonometry_13",
    },
  ],
};

export default data;
