高中數學主題練習—絕對值不等式

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this.dataset.retry = Number(this.dataset.retry)+1;})()" alt="raw-image"></div><div></div></div><p class="graf--p"><br></p></div></body></html>

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<div class="lexical__image center"><div class="lexical__imageWrapper"><img src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2F582b3f68-e5e6-426b-aa0f-e94667ef7297.png&amp;width=740&amp;sign=UsolJBRcqBHrl7xvwpMI-WrVURv9lKVvRYaER5vSF44" fetchpriority="high" data-src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2F582b3f68-e5e6-426b-aa0f-e94667ef7297.png&amp;width=740&amp;sign=UsolJBRcqBHrl7xvwpMI-WrVURv9lKVvRYaER5vSF44" data-loaded="true" data-original-src="https://images.vocus.cc/582b3f68-e5e6-426b-aa0f-e94667ef7297.png" data-lowquality="false" data-width="868" data-height="1016" data-retry="0" onerror="Number(this.dataset.retry) > 4 ? this.src='/static/default-error-img.svg': (() => {this.src=this.dataset.originalSrc; this.dataset.retry = Number(this.dataset.retry)+1;})()" data-istopthreeimage="true" alt="raw-image"></div><div></div></div><hr><h2 class="lexical__h2" dir="ltr"><span style="white-space: pre-wrap;">解答：</span></h2><div class="lexical__image center"><div class="lexical__imageWrapper"><img src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2Fdf9bc84d-0df2-4af5-827c-ab72c9904553.png&amp;width=740&amp;sign=s0JQBYiEAOidQGb8lYESxNZ318HLIKI3ePmfKdiKAb4" fetchpriority="high" data-src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2Fdf9bc84d-0df2-4af5-827c-ab72c9904553.png&amp;width=740&amp;sign=s0JQBYiEAOidQGb8lYESxNZ318HLIKI3ePmfKdiKAb4" data-loaded="true" data-original-src="https://images.vocus.cc/df9bc84d-0df2-4af5-827c-ab72c9904553.png" data-lowquality="false" data-width="868" data-height="886" data-retry="0" onerror="Number(this.dataset.retry) > 4 ? this.src='/static/default-error-img.svg': (() => {this.src=this.dataset.originalSrc; this.dataset.retry = Number(this.dataset.retry)+1;})()" data-istopthreeimage="true" alt="raw-image"></div><div></div></div><p class="lexical__paragraph"><br></p>