1.级数n=0->∞ sigema ln(2n+1)/n+1的敛散性,2.1+1/2!1/3!.+1/n!的敛散性,.1.级数n=0->∞ sigema ln(2n+1)/n+1的敛散性,2.1+1/2!1/3!.+1/n!的敛散性,3.把1/1+x²建立成关于x的幂级数 然后求它的敛散性
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![1.级数n=0->∞ sigema ln(2n+1)/n+1的敛散性,2.1+1/2!1/3!.+1/n!的敛散性,.1.级数n=0->∞ sigema ln(2n+1)/n+1的敛散性,2.1+1/2!1/3!.+1/n!的敛散性,3.把1/1+x²建立成关于x的幂级数 然后求它的敛散性](/uploads/image/z/4063294-46-4.jpg?t=1.%E7%BA%A7%E6%95%B0n%3D0-%3E%E2%88%9E+sigema+ln%EF%BC%882n%2B1%EF%BC%89%2Fn%2B1%E7%9A%84%E6%95%9B%E6%95%A3%E6%80%A7%2C2.1%2B1%2F2%211%2F3%21.%2B1%2Fn%21%E7%9A%84%E6%95%9B%E6%95%A3%E6%80%A7%2C.1.%E7%BA%A7%E6%95%B0n%3D0-%3E%E2%88%9E+sigema+ln%EF%BC%882n%2B1%EF%BC%89%2Fn%2B1%E7%9A%84%E6%95%9B%E6%95%A3%E6%80%A7%2C2.1%2B1%2F2%211%2F3%21.%2B1%2Fn%21%E7%9A%84%E6%95%9B%E6%95%A3%E6%80%A7%2C3.%E6%8A%8A1%2F1%2Bx%26sup2%3B%E5%BB%BA%E7%AB%8B%E6%88%90%E5%85%B3%E4%BA%8Ex%E7%9A%84%E5%B9%82%E7%BA%A7%E6%95%B0+%E7%84%B6%E5%90%8E%E6%B1%82%E5%AE%83%E7%9A%84%E6%95%9B%E6%95%A3%E6%80%A7)
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