求1/2log2^4+lg20+log100^25的值
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求1/2log2^4+lg20+log100^25的值
求1/2log2^4+lg20+log100^25的值
求1/2log2^4+lg20+log100^25的值
1/2log2^4+lg20+log100^25
=(1/2)×2×log2 2 +lg20 + lg25/lg100
=1+ lg10+lg2 + 2lg5/(2lg10)
=1+1+lg2+ lg5
=2+lg10
=3