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f(n)+n=2f(n-1)+2n f(n)+n+2=2(f(n-1)+(n-1)+2)
f⎛ ⎛⎜ ⎜⎝⎞⎟⎠n+1=2f⎛ ⎛⎜ ⎜⎝⎞⎟⎠nf⎛ ⎛⎜ ⎜⎝⎞⎟⎠n+2,f⎛ ⎛⎜ ⎜⎝⎞⎟⎠2=1猜想f⎛ ⎛⎜ ⎜⎝⎞⎟⎠n=___
例5 斐波那契(Fibonacci)数列定义如下: F_1=F_2=1 , F_(n+2)=F_(n+1)+Fn,n=1,2,….证明:对任意正整数m、n,都有 (F_m
TM9SF4 is a membrane protein with nine transmembrane domains and a long hydrophilic N-terminus with a signal peptide10. Previous studies reported that TM9SF can be cleaved to form a ~30 kDa N-terminal fragment (NTF)18. To confirm this, several TM9SF4 constructs containing different tags wer...
解答:解:根据题意,f(1)=1, f(2)= 2×1 1+2 = 2 3 , f(3)= 2× 2 3 2 3 +2 = 2 4 , f(4)= 2× 2 4 2 4 +2 = 2 5 , … 可以归纳f(n)为分数,且其分子为2不变,分母为n+1; 即f(n)= 2 n+1 , 故选:D
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2–4. Full size image CENP-F contains a coiled-coil domain on its N-terminal end, tandem repeats internally, and leucine zippers and structural maintenance of chromosomes (SMC) domains on its C-terminal end36. To define which region of CENP-F interacts with DRP1, three fragments of the ...
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