• 2022-06-01
    若已知级数[tex=3.714x3.286]WGu493lWbQkNjIXIJ06onT3QU0jn8OIdvbSEozq++L5iYU5MhSc0wTrCNvECtMFc[/tex] 的收敛半径为[tex=6.5x1.357]8WZN0goBGCBxHj8z0du2FBgWhVfUgmq9Pzh/8Sw4nTY=[/tex]. 试证级数 [tex=6.929x3.286]WGu493lWbQkNjIXIJ06onUhrA629m7A11jL1rVa4kmWH21E8JlR8KYWhCJznEEw9U3RA/R441vaWNWIygkauUA==[/tex]的收敛半径为[tex=7.571x2.786]xGuXb+WGabExcMy4WVzhLN8mjKojv7R2UqsYJrKBKwui3V8ncv9qmx8RA1F5HJcu7Tv34ISICAeBYbC2/o7srg==[/tex]