求答案。。
(1)2^(-1)x64^(2/3)x0.5^(-1)
=0.5x16x2
=16
(2)log(3)18-log(3)2+lg10
=log(3)(18÷2)+1
=log(3)9+1
=log(3)3²+1
=2+1
=3
(3)log(128)32
=log(2)32/log(2)128
=5/7
(4)(lg4+lg25-lg100)/lg0.1
=lg(4x25÷100)/lg0.1
=lg1/1g0.1
=0/(-1)
=0
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