数学优化

闫增涛

2024-06-13 f90af24164f9b8ba49d7fe1fb78eb2bb61664858

 src/books/mathBook/view/components/chapter001.vue

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        <div class="padding-116">
          <p>
            在客观世界中存在各种各样的运动变化现象.如搭载神舟十四号载人飞船的长征二号运载火箭发射过程中，飞船与发射点距离会随着时间的变化而变化；深海勇士号载人潜水器在下潜实验过程中，其压强随着下潜深度的增加而增大；代表新能源技术的光伏发电和风能发电，我国的装机容量随时间变化而增长；我国快速发展的高速铁路，其总里程是逐年增加的，现已突破4万km
            ，稳居世界第一；每个人的体温随着时间的变化而变化；到商店购买同一种饮料的数量越多，付费越多等.这些动态变化现象都表现为变量之间的对应关系，我们常用函数模型来描述这些变量之间的关系和规律，并通过研究函数来认识客观世界.
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            <p><span>089</span></p>
          </li>
        </ul>
        <div class="padding-96">
        <div class="padding-116">
          <h3 id="c031">
            3.3.2 函数的奇偶性<span class="fontsz2">＞＞＞</span>
          </h3>
@@ -66,6 +66,14 @@
            函数<i>f</i>（<i>x</i>）=|<i>x</i>|和<i>g</i>（<i>x</i>）=<i>x</i
            ><sup>2</sup>的图像的对称性如何？
          </p>
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            >=<i>g</i>（<i>x</i>），即<i>g</i>（-<i>x</i>）=<i>g</i>（<i>x</i>）.
          </p>
          <p>
            这两个函数的图像都关于<i>y</i>轴对称；当自变量取定义域中任意一对相反数时，对应的函数值都相等，这种函数就是偶函数.
            这两个函数的图像都关于 <i>y</i> 轴对称；当自变量取定义域中任意一对相
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          <li>数学.基础模块</li>
          <li></li>
        </ul>
        <div class="padding-96">
        <div class="padding-116">
          <p class="t0">反数时，对应的函数值都相等，这种函数就是偶函数.</p>
          <p class="left">
            <img class="img-gn" alt="" src="../../assets/images/cxgk.jpg" />
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          <p  class="fl">
            <span>
            <span class="zt-ls"><b>例1</b></span
            >　根据图3-16中函数的图像，判断哪些函数是偶函数.
            </span>
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@@ -202,14 +213,31 @@
              的函数图像不关于<i>y</i>轴对称.根据偶函数的图像具有关于<i>y</i>轴对称的特点，图3-16（1）和图3-16（4）的函数是偶函数，图3-16（2）和图3-16（3）的函数不是偶函数.
            </p>
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          <p>
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      </div>
    </div>
    <div class="page-box" page="8">
      <div v-if="showPageList.indexOf(8) > -1">
        <ul class="page-header-box">
          <li>
            <p>第三单元 函数</p>
          </li>
          <li>
            <p><span>091</span></p>
          </li>
        </ul>
        <div class="padding-116">
          <p class="fl">
            <span>
            <span class="zt-ls"><b>例2</b></span
            >　已知<i>f</i>（<i>x</i>）=|<i>x</i>|+1图像在<i>y</i>轴右边的部分如图3-17所示.试画出这个函数图像在<i>y</i>轴左边的部分.
            </span>
            
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@@ -229,20 +257,6 @@
            />
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          <p class="img">图3-17</p>
        </div>
      </div>
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          <li>
            <p>第三单元 函数</p>
          </li>
          <li>
            <p><span>091</span></p>
          </li>
        </ul>
        <div class="padding-96">
          <p v-if="isShowExampleTwo">
            <span class="zt-ls"><b>解</b></span>
            函数<i>f</i>（<i>x</i>）=|<i>x</i>|+1的定义域是（-∞，+∞），因为它是偶函数，所以根据其图像关于<i>y</i>轴对称的特点，即可画出这个函数在<i>x</i>∈（-∞，0］上的图像.
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              如果<i>f</i>（<i>x</i>），<i>g</i>（<i>x</i>）都是定义域为<i>D</i>的偶函数，那么<i>f</i>（<i>x</i>）+<i>g</i>（<i>x</i>）和<i>f</i>（<i>x</i>）<i>g</i>（<i>x</i>）仍是偶函数吗？
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          <li>数学.基础模块</li>
          <li></li>
        </ul>
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        <div class="padding-116">
          <p class="left">
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