⑴, ⑵f(x)=, ⑶, 查看更多

 

題目列表(包括答案和解析)

f(x)=x2x,數(shù)列{an}的前n項(xiàng)和為Sn,點(diǎn)(n,Sn)(n∈N*)均在函數(shù)y=f(x)的圖象上.
(Ⅰ)求數(shù)列{an}的通項(xiàng)公式an;
(Ⅱ)令bn,求數(shù)列{bn}的前n項(xiàng)和Tn

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f(x)=x2x,數(shù)列{an}的前n項(xiàng)和為Sn,點(diǎn)(n,Sn)(n∈N*)均在函數(shù)y=f(x)的圖象上.

(Ⅰ)求數(shù)列{an}的通項(xiàng)公式an;

 (Ⅱ)令bn,求數(shù)列{bn}的前n項(xiàng)和Tn

 

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f(x)=x2x,數(shù)列{an}的前n項(xiàng)和為Sn,點(diǎn)(n,Sn)(n∈N*)均在函數(shù)y=f(x)的圖象上.

(Ⅰ)求數(shù)列{an}的通項(xiàng)公式an;

 (Ⅱ)令bn,求數(shù)列{bn}的前n項(xiàng)和Tn

 

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f(x)=x2x,數(shù)列{an}的前n項(xiàng)和為Sn,點(diǎn)(n,Sn)(n∈N*)均在函數(shù)y=f(x)的圖象上.

(Ⅰ)求數(shù)列{an}的通項(xiàng)公式an;

(Ⅱ)令bn,求數(shù)列{bn}的前n項(xiàng)和Tn

 

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f(x)=x2x,數(shù)列{an}的前n項(xiàng)和為Sn,點(diǎn)(n,Sn)(n∈N*)均在函數(shù)y=f(x)的圖象上.

(Ⅰ)求數(shù)列{an}的通項(xiàng)公式an;

(Ⅱ)令bn,求數(shù)列{bn}的前n項(xiàng)和Tn.

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