作业帮log2 (1/49))×log3 (1/16)×log7 (1/27)
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log2 (1/49))×log3 (1/16)×log7 (1/27)
log2 (1/49))×log3 (1/16)×log7 (1/27)
log2 (1/49))×log3 (1/16)×log7 (1/27)
log2 (1/49)×log3 (1/16)×log7 (1/27)
=lg(1/49)/lg2×lg(1/16)/lg3×lg(1/27)/lg7
=(-2)×lg(7)/lg2×(-4)×lg2/lg3×(-3)×lg3/lg7
=-24
log2 (1/49))×log3 (1/16)×log7 (1/27)
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必修1数学：若log2[log3(log4X)]=0
已知log2(log3 x)=1,求x
已知log2(log3 x)=1,求x
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化简:log2 2+log5 1-3^(2log9 5)+(3log3 5)^2+3^log3 2