[數撚圍爐區] 喪屍奶媽是真的嗎? (6)
吾不會數學
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諗嚟諗去都係諗到用term-by-term differentiability theorem去prove佢係uniformly convergent
諗唔到個Weierstrass M-test點避開右手邊寫成harmonic series
諗唔到個Weierstrass M-test點避開右手邊寫成harmonic series
diu part a 好似係我exam題目
唔識做
唔識做過咗去就唔好諗
嚟緊有更多嘅難關等住你
嚟緊有更多嘅難關等住你
可唔可以咁做
let g_n = x^n/n^2
By ration test, g_n converges for abs(x)<1
Then By SLT, h(x) is continuous on [-1,1]
let g_n = x^n/n^2
By ration test, g_n converges for abs(x)<1
Then By SLT, h(x) is continuous on [-1,1]
唔明最尾3行點解可以present到order 4 同 inf group
take r such that x_0 < r < 1
sequential limit theorem
