bn=(2n+1)/(2n-1) 求數(shù)列bn前n項(xiàng)和Tn 就是求1+2/(2n-1)的前n項(xiàng)
bn=(2n+1)/(2n-1) 求數(shù)列bn前n項(xiàng)和Tn 就是求1+2/(2n-1)的前n項(xiàng)
答案公式
答案公式
數(shù)學(xué)人氣:230 ℃時(shí)間:2020-07-12 01:57:41
優(yōu)質(zhì)解答
連1/n都是發(fā)散的(和是正無(wú)窮大)所以1/2n-1,和也是無(wú)窮大
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