1.当x->0时,下列函数是其他三个的高阶无穷小的是?A.x+x^2 B.1-cosx C.a^x-1 D.ln(1-√x)要详解!2.lim(2x+3/2x+1)^x+1当x->无穷.我的问题是我化成e^limx+1ln(2x+3/2x+1)为什么最后会解出e^无穷呢?3.f(x)=1-^3√x^2(也就
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![1.当x->0时,下列函数是其他三个的高阶无穷小的是?A.x+x^2 B.1-cosx C.a^x-1 D.ln(1-√x)要详解!2.lim(2x+3/2x+1)^x+1当x->无穷.我的问题是我化成e^limx+1ln(2x+3/2x+1)为什么最后会解出e^无穷呢?3.f(x)=1-^3√x^2(也就](/uploads/image/z/8911923-51-3.jpg?t=1.%E5%BD%93x-%3E0%E6%97%B6%2C%E4%B8%8B%E5%88%97%E5%87%BD%E6%95%B0%E6%98%AF%E5%85%B6%E4%BB%96%E4%B8%89%E4%B8%AA%E7%9A%84%E9%AB%98%E9%98%B6%E6%97%A0%E7%A9%B7%E5%B0%8F%E7%9A%84%E6%98%AF%3FA.x%2Bx%5E2+B.1-cosx+C.a%5Ex-1+D.ln%281-%E2%88%9Ax%29%E8%A6%81%E8%AF%A6%E8%A7%A3%212.lim%282x%2B3%2F2x%2B1%29%5Ex%2B1%E5%BD%93x-%3E%E6%97%A0%E7%A9%B7.%E6%88%91%E7%9A%84%E9%97%AE%E9%A2%98%E6%98%AF%E6%88%91%E5%8C%96%E6%88%90e%5Elimx%2B1ln%282x%2B3%2F2x%2B1%29%E4%B8%BA%E4%BB%80%E4%B9%88%E6%9C%80%E5%90%8E%E4%BC%9A%E8%A7%A3%E5%87%BAe%5E%E6%97%A0%E7%A9%B7%E5%91%A2%3F3.f%28x%29%3D1-%5E3%E2%88%9Ax%5E2%28%E4%B9%9F%E5%B0%B1)
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