计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
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计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
log2 6-log2 3=log2 (6÷3)=log2 2=1,
lg5+lg2=lg(5×2)=lg10=1,
log5 3+log5 1/3=log5 (3×1/3)=log5 1=0,
log3 5-log3 15=log3 (5÷15)=log 3 (1/3)=-1
计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
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log2 6-log2 3
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2^log2(3)×log2(1/8)+lg4+2lg5
lg2+lg5-log2(3)乘log3(2)
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