log√2 (√X/2)=2log2 (√X/2)=log2 (x/4)=(log2 x)-2log2 (x/2)=(log2 x)-1∴f(x)=[(log2 x)-1]*[(log2 x)-2]=(log2 x)²-3(log2 x)+2=[(log2 x)-3/2]²-1/4
f(x)=log2 (X/2)log√2 (√X/2)如何化简
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