高中數學主題練習—挑數字問題

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               padding: 1px 0.25rem;                font-family: Menlo, Consolas, Monaco, monospace;                font-size: 94%;              }            </style></head><body><div class="article-container"><div class="graf--img center"><div class="lexical__imageWrapper"><img src="https://images.vocus.cc/e47d854b-34f0-408d-8cd4-57ca5b20a0cf.png" data-src="https://resize-image.vocus.cc/resize?compression=6&norotation=true&url=https%3A%2F%2Fimages.vocus.cc%2Fe47d854b-34f0-408d-8cd4-57ca5b20a0cf.png&width=696&sign=Kv4kgdgEzb-TdRsdUnwkCa-a5jy8_tOGvoOpn_6z4s0" class="lazy" data-loaded="false" data-original-src="https://images.vocus.cc/e47d854b-34f0-408d-8cd4-57ca5b20a0cf.png" data-lowquality="false" data-width="696" data-height="490" 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;})()" alt="raw-image"></div><div></div></div><hr><h2 class="graf--h2" dir="ltr"><span style="white-space: pre-wrap;">解答：</span></h2><div class="graf--img center"><div class="lexical__imageWrapper"><img src="https://images.vocus.cc/61fb3435-8777-412d-9c2d-fd0ba8a721f6.png" data-src="https://resize-image.vocus.cc/resize?compression=6&norotation=true&url=https%3A%2F%2Fimages.vocus.cc%2F61fb3435-8777-412d-9c2d-fd0ba8a721f6.png&width=180&sign=ceWUMueOT8XHghQ34BPCjJrACGINZ-0Ew93HuteoPaw" class="lazy" data-loaded="false" data-original-src="https://images.vocus.cc/61fb3435-8777-412d-9c2d-fd0ba8a721f6.png" data-lowquality="false" data-width="180" data-height="445" 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;})()" alt="raw-image"></div><div></div></div><p class="graf--p"><br></p><p class="graf--p" dir="ltr"><br></p></div></body></html>

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挑數字問題（一）

<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%2Fe47d854b-34f0-408d-8cd4-57ca5b20a0cf.png&amp;width=696&amp;sign=Kv4kgdgEzb-TdRsdUnwkCa-a5jy8_tOGvoOpn_6z4s0" data-src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2Fe47d854b-34f0-408d-8cd4-57ca5b20a0cf.png&amp;width=696&amp;sign=Kv4kgdgEzb-TdRsdUnwkCa-a5jy8_tOGvoOpn_6z4s0" data-loaded="true" data-original-src="https://images.vocus.cc/e47d854b-34f0-408d-8cd4-57ca5b20a0cf.png" data-lowquality="false" data-width="696" data-height="490" 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;})()" 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%2F61fb3435-8777-412d-9c2d-fd0ba8a721f6.png&amp;width=180&amp;sign=ceWUMueOT8XHghQ34BPCjJrACGINZ-0Ew93HuteoPaw" data-src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2F61fb3435-8777-412d-9c2d-fd0ba8a721f6.png&amp;width=180&amp;sign=ceWUMueOT8XHghQ34BPCjJrACGINZ-0Ew93HuteoPaw" data-loaded="true" data-original-src="https://images.vocus.cc/61fb3435-8777-412d-9c2d-fd0ba8a721f6.png" data-lowquality="false" data-width="180" data-height="445" 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;})()" alt="raw-image"></div><div></div></div><p class="lexical__paragraph"><br></p><p class="lexical__paragraph" dir="ltr"><br></p>