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zzrqyr: ½ð±Ò+10, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ллͬѧ£¡ 2015-12-13 23:22:39
Edstrayer: ½ð±Ò+7, LatexÓ¦Öú 2015-12-14 03:26:59
a) If  £¬then £¬
, ÓÉ¿ØÖÆÊÕÁ²¶¨Àí£¬

b) £¬Òò´Ë


c) £¬¹ÊÈκÎ×ÓÁбØÓм¸ºõ´¦´¦ÊÕÁ²µÄ×ÓÁУ¬Éè
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2Â¥2015-12-13 22:57:53
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ÒýÓûØÌû:
2Â¥: Originally posted by jabile at 2015-12-13 22:57:53
a) If  X_n\xrightarrow{P} 0£¬then Y_n={|X_n|^p\over 1+|X_n|^p}\xrightarrow{P} 0£¬
|Y_n|\leq 1, ÓÉ¿ØÖÆÊÕÁ²¶¨Àí£¬E(Y_n)\rightarrow 0

b) Y_n\xrightarrow{P} 0 £¬Òò´Ë
|X_n|=|{Y_n\over 1-Y_n}|^{1/p}\ ...

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