
第三题有人会写吗?谢谢,
1个回答
展开全部
1+log2(3)>1+log2(2)=1+1=2>0
1+log2(3) -1=log2(3)
log2(3)>log2(2)=1>0
log2(3) -1>log2(2)-1=1-1=0
log2(3)-2<log2(4)-2=2-2=0
f[1+log2(3)]
=f[log2(3) -2]
=(½)^[log2(3)-2-1]
=2^[3-log2(3)]
=2³/ 2^[(log2(3)]
=8/3
1+log2(3) -1=log2(3)
log2(3)>log2(2)=1>0
log2(3) -1>log2(2)-1=1-1=0
log2(3)-2<log2(4)-2=2-2=0
f[1+log2(3)]
=f[log2(3) -2]
=(½)^[log2(3)-2-1]
=2^[3-log2(3)]
=2³/ 2^[(log2(3)]
=8/3
追问
好的,谢谢你,
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