Tính nguyên hàm <span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-1"><span class="MJXp-mstyle" id="MJXp-Span-2"><span class="MJXp-mo" id="MJXp-Span-3" style="margin-left: 0em; margin-right: 0.111em;">∫</span><span class="MJXp-mstyle" id="MJXp-Span-4"><span class="MJXp-mfrac" id="MJXp-Span-5" style="vertical-align: 0.25em;"><span class="MJXp-box"><span class="MJXp-mn" id="MJXp-Span-6">1</span></span><span class="MJXp-box" style="margin-top: -0.9em;"><span class="MJXp-denom"><span><span class="MJXp-rule" style="height: 1em; border-top: none; border-bottom: 1px solid; margin: 0.1em 0px;"></span></span><span><span class="MJXp-box"><span class="MJXp-mn" id="MJXp-Span-7">1</span><span class="MJXp-mo" id="MJXp-Span-8" style="margin-left: 0.267em; margin-right: 0.267em;">+</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-9">x</span></span></span></span></span></span></span><span class="MJXp-mrow" id="MJXp-Span-10"><span class="MJXp-mi" id="MJXp-Span-11">d</span></span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-12">x</span><span class="MJXp-mo" id="MJXp-Span-13" style="margin-left: 0em; margin-right: 0.222em;">.</span></span></span></span><script type="math/tex" id="MathJax-Element-1">\Large \int \dfrac{1}{1+x}\mathrm{d}x.</script> $\Large -\dfr

Tính nguyên hàm 11+xdx. $\Large -\dfr

4.5/5

Tác giả: Thầy Tùng

Đăng ngày: 18 Aug 2022

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Câu hỏi:

Tính nguyên hàm 11+xdx.

Đáp án án đúng là: B

Lời giải chi tiết:

Chọn B

Kiến thức cần nhớ: 1ax+bdx=1a.ln|ax+b|+C.

Ta có 11+xdx=ln|1+x|+C.